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Finding the Fourth Proportional to 230,372.88, 317,930.52 and 139,732.66

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Solution

The fourth proportional to 230,372.88, 317,930.52 and 139,732.66 is: 192,840.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,372.88 : 317,930.52 = 139,732.66 : x
  2. Step 2: Convert to fraction form
    230,372.88/317,930.52 = 139,732.66/x
  3. Step 3: Cross multiply
    230,372.88x = 317,930.52 × 139,732.66
  4. Step 4: Simplify right side
    230,372.88x = 44,425,278,176.19
  5. Step 5: Solve for x
    x = 44,425,278,176.19/230,372.88
  6. Step 6: Final answer
    x = 192,840.75

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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.