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Finding the Fourth Proportional to 219,384.70, 328,979.85 and 101,092.30

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Solution

The fourth proportional to 219,384.70, 328,979.85 and 101,092.30 is: 151,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,384.70 : 328,979.85 = 101,092.30 : x
  2. Step 2: Convert to fraction form
    219,384.70/328,979.85 = 101,092.30/x
  3. Step 3: Cross multiply
    219,384.70x = 328,979.85 × 101,092.30
  4. Step 4: Simplify right side
    219,384.70x = 33,257,329,690.16
  5. Step 5: Solve for x
    x = 33,257,329,690.16/219,384.70
  6. Step 6: Final answer
    x = 151,593.66

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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.