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Finding the Fourth Proportional to 149,990.40, 224,726.40 and 126,662.40

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Solution

The fourth proportional to 149,990.40, 224,726.40 and 126,662.40 is: 189,774.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,990.40 : 224,726.40 = 126,662.40 : x
  2. Step 2: Convert to fraction form
    149,990.40/224,726.40 = 126,662.40/x
  3. Step 3: Cross multiply
    149,990.40x = 224,726.40 × 126,662.40
  4. Step 4: Simplify right side
    149,990.40x = 28,464,385,167.36
  5. Step 5: Solve for x
    x = 28,464,385,167.36/149,990.40
  6. Step 6: Final answer
    x = 189,774.71

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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.