Home / 218,921.61-328,417.52-92,563.18

Finding the Fourth Proportional to 218,921.61, 328,417.52 and 92,563.18

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Solution

The fourth proportional to 218,921.61, 328,417.52 and 92,563.18 is: 138,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,921.61 : 328,417.52 = 92,563.18 : x
  2. Step 2: Convert to fraction form
    218,921.61/328,417.52 = 92,563.18/x
  3. Step 3: Cross multiply
    218,921.61x = 328,417.52 × 92,563.18
  4. Step 4: Simplify right side
    218,921.61x = 30,399,370,018.91
  5. Step 5: Solve for x
    x = 30,399,370,018.91/218,921.61
  6. Step 6: Final answer
    x = 138,859.61

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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.