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Finding the Fourth Proportional to 267,123.60, 400,345.20 and 109,173.60

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Solution

The fourth proportional to 267,123.60, 400,345.20 and 109,173.60 is: 163,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,123.60 : 400,345.20 = 109,173.60 : x
  2. Step 2: Convert to fraction form
    267,123.60/400,345.20 = 109,173.60/x
  3. Step 3: Cross multiply
    267,123.60x = 400,345.20 × 109,173.60
  4. Step 4: Simplify right side
    267,123.60x = 43,707,126,726.72
  5. Step 5: Solve for x
    x = 43,707,126,726.72/267,123.60
  6. Step 6: Final answer
    x = 163,621.36

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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.