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Finding the Fourth Proportional to 220,488.00, 330,625.01 and 129,328.30

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Solution

The fourth proportional to 220,488.00, 330,625.01 and 129,328.30 is: 193,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,488.00 : 330,625.01 = 129,328.30 : x
  2. Step 2: Convert to fraction form
    220,488.00/330,625.01 = 129,328.30/x
  3. Step 3: Cross multiply
    220,488.00x = 330,625.01 × 129,328.30
  4. Step 4: Simplify right side
    220,488.00x = 42,759,170,489.91
  5. Step 5: Solve for x
    x = 42,759,170,489.91/220,488.00
  6. Step 6: Final answer
    x = 193,929.70

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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.