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Finding the Fourth Proportional to 153,876.20, 230,814.30 and 79,226.60

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Solution

The fourth proportional to 153,876.20, 230,814.30 and 79,226.60 is: 118,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,876.20 : 230,814.30 = 79,226.60 : x
  2. Step 2: Convert to fraction form
    153,876.20/230,814.30 = 79,226.60/x
  3. Step 3: Cross multiply
    153,876.20x = 230,814.30 × 79,226.60
  4. Step 4: Simplify right side
    153,876.20x = 18,286,632,220.38
  5. Step 5: Solve for x
    x = 18,286,632,220.38/153,876.20
  6. Step 6: Final answer
    x = 118,839.90

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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.