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Finding the Fourth Proportional to 522,372.66, 783,560.19 and 143,298.90

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Solution

The fourth proportional to 522,372.66, 783,560.19 and 143,298.90 is: 214,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,372.66 : 783,560.19 = 143,298.90 : x
  2. Step 2: Convert to fraction form
    522,372.66/783,560.19 = 143,298.90/x
  3. Step 3: Cross multiply
    522,372.66x = 783,560.19 × 143,298.90
  4. Step 4: Simplify right side
    522,372.66x = 112,283,313,310.79
  5. Step 5: Solve for x
    x = 112,283,313,310.79/522,372.66
  6. Step 6: Final answer
    x = 214,948.68

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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.