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Finding the Fourth Proportional to 239,818.16, 359,762.78 and 79,841.85

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Solution

The fourth proportional to 239,818.16, 359,762.78 and 79,841.85 is: 119,774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,818.16 : 359,762.78 = 79,841.85 : x
  2. Step 2: Convert to fraction form
    239,818.16/359,762.78 = 79,841.85/x
  3. Step 3: Cross multiply
    239,818.16x = 359,762.78 × 79,841.85
  4. Step 4: Simplify right side
    239,818.16x = 28,724,124,117.53
  5. Step 5: Solve for x
    x = 28,724,124,117.53/239,818.16
  6. Step 6: Final answer
    x = 119,774.60

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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.