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Finding the Fourth Proportional to 153,885.60, 230,770.80 and 54,007.20

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Solution

The fourth proportional to 153,885.60, 230,770.80 and 54,007.20 is: 80,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,885.60 : 230,770.80 = 54,007.20 : x
  2. Step 2: Convert to fraction form
    153,885.60/230,770.80 = 54,007.20/x
  3. Step 3: Cross multiply
    153,885.60x = 230,770.80 × 54,007.20
  4. Step 4: Simplify right side
    153,885.60x = 12,463,284,749.76
  5. Step 5: Solve for x
    x = 12,463,284,749.76/153,885.60
  6. Step 6: Final answer
    x = 80,990.58

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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.