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Finding the Fourth Proportional to 149,992.40, 224,624.10 and 79,716.80

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Solution

The fourth proportional to 149,992.40, 224,624.10 and 79,716.80 is: 119,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,992.40 : 224,624.10 = 79,716.80 : x
  2. Step 2: Convert to fraction form
    149,992.40/224,624.10 = 79,716.80/x
  3. Step 3: Cross multiply
    149,992.40x = 224,624.10 × 79,716.80
  4. Step 4: Simplify right side
    149,992.40x = 17,906,314,454.88
  5. Step 5: Solve for x
    x = 17,906,314,454.88/149,992.40
  6. Step 6: Final answer
    x = 119,381.48

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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.