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Finding the Fourth Proportional to 457,897.72, 631,900.71 and 253,967.68

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Solution

The fourth proportional to 457,897.72, 631,900.71 and 253,967.68 is: 350,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,897.72 : 631,900.71 = 253,967.68 : x
  2. Step 2: Convert to fraction form
    457,897.72/631,900.71 = 253,967.68/x
  3. Step 3: Cross multiply
    457,897.72x = 631,900.71 × 253,967.68
  4. Step 4: Simplify right side
    457,897.72x = 160,482,357,309.05
  5. Step 5: Solve for x
    x = 160,482,357,309.05/457,897.72
  6. Step 6: Final answer
    x = 350,476.43

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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.