Home / 442,144.13-663,216.19-109,720.13

Finding the Fourth Proportional to 442,144.13, 663,216.19 and 109,720.13

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Solution

The fourth proportional to 442,144.13, 663,216.19 and 109,720.13 is: 164,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,144.13 : 663,216.19 = 109,720.13 : x
  2. Step 2: Convert to fraction form
    442,144.13/663,216.19 = 109,720.13/x
  3. Step 3: Cross multiply
    442,144.13x = 663,216.19 × 109,720.13
  4. Step 4: Simplify right side
    442,144.13x = 72,768,162,994.52
  5. Step 5: Solve for x
    x = 72,768,162,994.52/442,144.13
  6. Step 6: Final answer
    x = 164,580.19

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Similar ratio
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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.