Home / 454,429.41-681,644.12-138,883.65

Finding the Fourth Proportional to 454,429.41, 681,644.12 and 138,883.65

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Solution

The fourth proportional to 454,429.41, 681,644.12 and 138,883.65 is: 208,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,429.41 : 681,644.12 = 138,883.65 : x
  2. Step 2: Convert to fraction form
    454,429.41/681,644.12 = 138,883.65/x
  3. Step 3: Cross multiply
    454,429.41x = 681,644.12 × 138,883.65
  4. Step 4: Simplify right side
    454,429.41x = 94,669,222,692.22
  5. Step 5: Solve for x
    x = 94,669,222,692.22/454,429.41
  6. Step 6: Final answer
    x = 208,325.48

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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.