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Finding the Fourth Proportional to 457,245.29, 630,991.69 and 253,295.60

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Solution

The fourth proportional to 457,245.29, 630,991.69 and 253,295.60 is: 349,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,245.29 : 630,991.69 = 253,295.60 : x
  2. Step 2: Convert to fraction form
    457,245.29/630,991.69 = 253,295.60/x
  3. Step 3: Cross multiply
    457,245.29x = 630,991.69 × 253,295.60
  4. Step 4: Simplify right side
    457,245.29x = 159,827,414,925.37
  5. Step 5: Solve for x
    x = 159,827,414,925.37/457,245.29
  6. Step 6: Final answer
    x = 349,544.15

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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.