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Finding the Fourth Proportional to 431,543.30, 595,507.95 and 240,519.78

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Solution

The fourth proportional to 431,543.30, 595,507.95 and 240,519.78 is: 331,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,543.30 : 595,507.95 = 240,519.78 : x
  2. Step 2: Convert to fraction form
    431,543.30/595,507.95 = 240,519.78/x
  3. Step 3: Cross multiply
    431,543.30x = 595,507.95 × 240,519.78
  4. Step 4: Simplify right side
    431,543.30x = 143,231,441,122.25
  5. Step 5: Solve for x
    x = 143,231,441,122.25/431,543.30
  6. Step 6: Final answer
    x = 331,905.15

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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.