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Finding the Fourth Proportional to 220,329.32, 330,309.90 and 102,085.52

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Solution

The fourth proportional to 220,329.32, 330,309.90 and 102,085.52 is: 153,042.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,329.32 : 330,309.90 = 102,085.52 : x
  2. Step 2: Convert to fraction form
    220,329.32/330,309.90 = 102,085.52/x
  3. Step 3: Cross multiply
    220,329.32x = 330,309.90 × 102,085.52
  4. Step 4: Simplify right side
    220,329.32x = 33,719,856,251.10
  5. Step 5: Solve for x
    x = 33,719,856,251.10/220,329.32
  6. Step 6: Final answer
    x = 153,042.99

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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.