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Finding the Fourth Proportional to 230,248.52, 345,569.60 and 90,105.56

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Solution

The fourth proportional to 230,248.52, 345,569.60 and 90,105.56 is: 135,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,248.52 : 345,569.60 = 90,105.56 : x
  2. Step 2: Convert to fraction form
    230,248.52/345,569.60 = 90,105.56/x
  3. Step 3: Cross multiply
    230,248.52x = 345,569.60 × 90,105.56
  4. Step 4: Simplify right side
    230,248.52x = 31,137,742,326.98
  5. Step 5: Solve for x
    x = 31,137,742,326.98/230,248.52
  6. Step 6: Final answer
    x = 135,235.36

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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.