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Finding the Fourth Proportional to 149,888.60, 224,768.10 and 74,979.80

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Solution

The fourth proportional to 149,888.60, 224,768.10 and 74,979.80 is: 112,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,888.60 : 224,768.10 = 74,979.80 : x
  2. Step 2: Convert to fraction form
    149,888.60/224,768.10 = 74,979.80/x
  3. Step 3: Cross multiply
    149,888.60x = 224,768.10 × 74,979.80
  4. Step 4: Simplify right side
    149,888.60x = 16,853,067,184.38
  5. Step 5: Solve for x
    x = 16,853,067,184.38/149,888.60
  6. Step 6: Final answer
    x = 112,437.28

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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.