Home / 282,657.12-423,988.11-82,980.78

Finding the Fourth Proportional to 282,657.12, 423,988.11 and 82,980.78

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Solution

The fourth proportional to 282,657.12, 423,988.11 and 82,980.78 is: 124,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,657.12 : 423,988.11 = 82,980.78 : x
  2. Step 2: Convert to fraction form
    282,657.12/423,988.11 = 82,980.78/x
  3. Step 3: Cross multiply
    282,657.12x = 423,988.11 × 82,980.78
  4. Step 4: Simplify right side
    282,657.12x = 35,182,864,078.53
  5. Step 5: Solve for x
    x = 35,182,864,078.53/282,657.12
  6. Step 6: Final answer
    x = 124,471.88

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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.