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Finding the Fourth Proportional to 230,766, 318,457.08 and 124,782

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Solution

The fourth proportional to 230,766, 318,457.08 and 124,782 is: 172,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,766 : 318,457.08 = 124,782 : x
  2. Step 2: Convert to fraction form
    230,766/318,457.08 = 124,782/x
  3. Step 3: Cross multiply
    230,766x = 318,457.08 × 124,782
  4. Step 4: Simplify right side
    230,766x = 39,737,711,356.56
  5. Step 5: Solve for x
    x = 39,737,711,356.56/230,766
  6. Step 6: Final answer
    x = 172,199.16

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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.