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Finding the Fourth Proportional to 457,447.50, 631,279.02 and 253,501.77

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Solution

The fourth proportional to 457,447.50, 631,279.02 and 253,501.77 is: 349,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,447.50 : 631,279.02 = 253,501.77 : x
  2. Step 2: Convert to fraction form
    457,447.50/631,279.02 = 253,501.77/x
  3. Step 3: Cross multiply
    457,447.50x = 631,279.02 × 253,501.77
  4. Step 4: Simplify right side
    457,447.50x = 160,030,352,251.79
  5. Step 5: Solve for x
    x = 160,030,352,251.79/457,447.50
  6. Step 6: Final answer
    x = 349,833.26

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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.