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Finding the Fourth Proportional to 230,751, 318,436.38 and 124,767

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Solution

The fourth proportional to 230,751, 318,436.38 and 124,767 is: 172,178.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,751 : 318,436.38 = 124,767 : x
  2. Step 2: Convert to fraction form
    230,751/318,436.38 = 124,767/x
  3. Step 3: Cross multiply
    230,751x = 318,436.38 × 124,767
  4. Step 4: Simplify right side
    230,751x = 39,730,351,823.46
  5. Step 5: Solve for x
    x = 39,730,351,823.46/230,751
  6. Step 6: Final answer
    x = 172,178.46

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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.