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Finding the Fourth Proportional to 230,235.64, 345,400.17 and 72,427.39

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Solution

The fourth proportional to 230,235.64, 345,400.17 and 72,427.39 is: 108,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,235.64 : 345,400.17 = 72,427.39 : x
  2. Step 2: Convert to fraction form
    230,235.64/345,400.17 = 72,427.39/x
  3. Step 3: Cross multiply
    230,235.64x = 345,400.17 × 72,427.39
  4. Step 4: Simplify right side
    230,235.64x = 25,016,434,237.54
  5. Step 5: Solve for x
    x = 25,016,434,237.54/230,235.64
  6. Step 6: Final answer
    x = 108,655.78

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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.