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Finding the Fourth Proportional to 219,177.28, 328,733.04 and 69,398.16

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Solution

The fourth proportional to 219,177.28, 328,733.04 and 69,398.16 is: 104,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,177.28 : 328,733.04 = 69,398.16 : x
  2. Step 2: Convert to fraction form
    219,177.28/328,733.04 = 69,398.16/x
  3. Step 3: Cross multiply
    219,177.28x = 328,733.04 × 69,398.16
  4. Step 4: Simplify right side
    219,177.28x = 22,813,468,107.21
  5. Step 5: Solve for x
    x = 22,813,468,107.21/219,177.28
  6. Step 6: Final answer
    x = 104,086.83

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1.5x scale

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.