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Finding the Fourth Proportional to 356,515.90, 534,773.85 and 286,531.90

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Solution

The fourth proportional to 356,515.90, 534,773.85 and 286,531.90 is: 429,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,515.90 : 534,773.85 = 286,531.90 : x
  2. Step 2: Convert to fraction form
    356,515.90/534,773.85 = 286,531.90/x
  3. Step 3: Cross multiply
    356,515.90x = 534,773.85 × 286,531.90
  4. Step 4: Simplify right side
    356,515.90x = 153,229,767,310.82
  5. Step 5: Solve for x
    x = 153,229,767,310.82/356,515.90
  6. Step 6: Final answer
    x = 429,797.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.