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Finding the Fourth Proportional to 457,433.89, 631,262.50 and 253,488.21

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Solution

The fourth proportional to 457,433.89, 631,262.50 and 253,488.21 is: 349,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,433.89 : 631,262.50 = 253,488.21 : x
  2. Step 2: Convert to fraction form
    457,433.89/631,262.50 = 253,488.21/x
  3. Step 3: Cross multiply
    457,433.89x = 631,262.50 × 253,488.21
  4. Step 4: Simplify right side
    457,433.89x = 160,017,601,165.13
  5. Step 5: Solve for x
    x = 160,017,601,165.13/457,433.89
  6. Step 6: Final answer
    x = 349,815.80

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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.