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Finding the Fourth Proportional to 457,959.61, 631,986.47 and 253,996.35

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Solution

The fourth proportional to 457,959.61, 631,986.47 and 253,996.35 is: 350,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,959.61 : 631,986.47 = 253,996.35 : x
  2. Step 2: Convert to fraction form
    457,959.61/631,986.47 = 253,996.35/x
  3. Step 3: Cross multiply
    457,959.61x = 631,986.47 × 253,996.35
  4. Step 4: Simplify right side
    457,959.61x = 160,522,256,629.39
  5. Step 5: Solve for x
    x = 160,522,256,629.39/457,959.61
  6. Step 6: Final answer
    x = 350,516.19

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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.