Home / 454,311.90-681,467.85-138,768.30

Finding the Fourth Proportional to 454,311.90, 681,467.85 and 138,768.30

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Solution

The fourth proportional to 454,311.90, 681,467.85 and 138,768.30 is: 208,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,311.90 : 681,467.85 = 138,768.30 : x
  2. Step 2: Convert to fraction form
    454,311.90/681,467.85 = 138,768.30/x
  3. Step 3: Cross multiply
    454,311.90x = 681,467.85 × 138,768.30
  4. Step 4: Simplify right side
    454,311.90x = 94,566,135,049.16
  5. Step 5: Solve for x
    x = 94,566,135,049.16/454,311.90
  6. Step 6: Final answer
    x = 208,152.45

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Similar ratio
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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.