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Finding the Fourth Proportional to 369,702.81, 554,221.98 and 132,879.42

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Solution

The fourth proportional to 369,702.81, 554,221.98 and 132,879.42 is: 199,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,702.81 : 554,221.98 = 132,879.42 : x
  2. Step 2: Convert to fraction form
    369,702.81/554,221.98 = 132,879.42/x
  3. Step 3: Cross multiply
    369,702.81x = 554,221.98 × 132,879.42
  4. Step 4: Simplify right side
    369,702.81x = 73,644,695,253.65
  5. Step 5: Solve for x
    x = 73,644,695,253.65/369,702.81
  6. Step 6: Final answer
    x = 199,199.72

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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.