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Finding the Fourth Proportional to 457,259.99, 631,012.13 and 253,310.57

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Solution

The fourth proportional to 457,259.99, 631,012.13 and 253,310.57 is: 349,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,259.99 : 631,012.13 = 253,310.57 : x
  2. Step 2: Convert to fraction form
    457,259.99/631,012.13 = 253,310.57/x
  3. Step 3: Cross multiply
    457,259.99x = 631,012.13 × 253,310.57
  4. Step 4: Simplify right side
    457,259.99x = 159,842,041,060.66
  5. Step 5: Solve for x
    x = 159,842,041,060.66/457,259.99
  6. Step 6: Final answer
    x = 349,564.90

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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.