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Finding the Fourth Proportional to 216,590.28, 324,890.82 and 102,711.30

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Solution

The fourth proportional to 216,590.28, 324,890.82 and 102,711.30 is: 154,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,590.28 : 324,890.82 = 102,711.30 : x
  2. Step 2: Convert to fraction form
    216,590.28/324,890.82 = 102,711.30/x
  3. Step 3: Cross multiply
    216,590.28x = 324,890.82 × 102,711.30
  4. Step 4: Simplify right side
    216,590.28x = 33,369,958,480.27
  5. Step 5: Solve for x
    x = 33,369,958,480.27/216,590.28
  6. Step 6: Final answer
    x = 154,069.51

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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.