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Finding the Fourth Proportional to 239,818.98, 359,764.01 and 79,842.66

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Solution

The fourth proportional to 239,818.98, 359,764.01 and 79,842.66 is: 119,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,818.98 : 359,764.01 = 79,842.66 : x
  2. Step 2: Convert to fraction form
    239,818.98/359,764.01 = 79,842.66/x
  3. Step 3: Cross multiply
    239,818.98x = 359,764.01 × 79,842.66
  4. Step 4: Simplify right side
    239,818.98x = 28,724,515,131.45
  5. Step 5: Solve for x
    x = 28,724,515,131.45/239,818.98
  6. Step 6: Final answer
    x = 119,775.82

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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.