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Finding the Fourth Proportional to 457,955.32, 631,946.62 and 253,986.92

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Solution

The fourth proportional to 457,955.32, 631,946.62 and 253,986.92 is: 350,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,955.32 : 631,946.62 = 253,986.92 : x
  2. Step 2: Convert to fraction form
    457,955.32/631,946.62 = 253,986.92/x
  3. Step 3: Cross multiply
    457,955.32x = 631,946.62 × 253,986.92
  4. Step 4: Simplify right side
    457,955.32x = 160,506,175,618.21
  5. Step 5: Solve for x
    x = 160,506,175,618.21/457,955.32
  6. Step 6: Final answer
    x = 350,484.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.