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Finding the Fourth Proportional to 150,002.20, 225,024.90 and 79,886.80

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Solution

The fourth proportional to 150,002.20, 225,024.90 and 79,886.80 is: 119,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,002.20 : 225,024.90 = 79,886.80 : x
  2. Step 2: Convert to fraction form
    150,002.20/225,024.90 = 79,886.80/x
  3. Step 3: Cross multiply
    150,002.20x = 225,024.90 × 79,886.80
  4. Step 4: Simplify right side
    150,002.20x = 17,976,519,181.32
  5. Step 5: Solve for x
    x = 17,976,519,181.32/150,002.20
  6. Step 6: Final answer
    x = 119,841.70

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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.