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Finding the Fourth Proportional to 239,841.77, 359,642.16 and 79,861.15

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Solution

The fourth proportional to 239,841.77, 359,642.16 and 79,861.15 is: 119,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,841.77 : 359,642.16 = 79,861.15 : x
  2. Step 2: Convert to fraction form
    239,841.77/359,642.16 = 79,861.15/x
  3. Step 3: Cross multiply
    239,841.77x = 359,642.16 × 79,861.15
  4. Step 4: Simplify right side
    239,841.77x = 28,721,436,486.08
  5. Step 5: Solve for x
    x = 28,721,436,486.08/239,841.77
  6. Step 6: Final answer
    x = 119,751.60

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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.