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Finding the Fourth Proportional to 240,489.66, 360,455.66 and 90,634

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Solution

The fourth proportional to 240,489.66, 360,455.66 and 90,634 is: 135,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,489.66 : 360,455.66 = 90,634 : x
  2. Step 2: Convert to fraction form
    240,489.66/360,455.66 = 90,634/x
  3. Step 3: Cross multiply
    240,489.66x = 360,455.66 × 90,634
  4. Step 4: Simplify right side
    240,489.66x = 32,669,538,288.44
  5. Step 5: Solve for x
    x = 32,669,538,288.44/240,489.66
  6. Step 6: Final answer
    x = 135,845.92

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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.