Home / 218,760.16-328,158.77-60,988.76

Finding the Fourth Proportional to 218,760.16, 328,158.77 and 60,988.76

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Solution

The fourth proportional to 218,760.16, 328,158.77 and 60,988.76 is: 91,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,760.16 : 328,158.77 = 60,988.76 : x
  2. Step 2: Convert to fraction form
    218,760.16/328,158.77 = 60,988.76/x
  3. Step 3: Cross multiply
    218,760.16x = 328,158.77 × 60,988.76
  4. Step 4: Simplify right side
    218,760.16x = 20,013,996,465.43
  5. Step 5: Solve for x
    x = 20,013,996,465.43/218,760.16
  6. Step 6: Final answer
    x = 91,488.31

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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.