Home / 218,765.18-328,007.64-92,371.16

Finding the Fourth Proportional to 218,765.18, 328,007.64 and 92,371.16

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Solution

The fourth proportional to 218,765.18, 328,007.64 and 92,371.16 is: 138,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,765.18 : 328,007.64 = 92,371.16 : x
  2. Step 2: Convert to fraction form
    218,765.18/328,007.64 = 92,371.16/x
  3. Step 3: Cross multiply
    218,765.18x = 328,007.64 × 92,371.16
  4. Step 4: Simplify right side
    218,765.18x = 30,298,446,195.66
  5. Step 5: Solve for x
    x = 30,298,446,195.66/218,765.18
  6. Step 6: Final answer
    x = 138,497.57

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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.