Home / 282,721.12-390,211.89-167,977.69

Finding the Fourth Proportional to 282,721.12, 390,211.89 and 167,977.69

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Solution

The fourth proportional to 282,721.12, 390,211.89 and 167,977.69 is: 231,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,721.12 : 390,211.89 = 167,977.69 : x
  2. Step 2: Convert to fraction form
    282,721.12/390,211.89 = 167,977.69/x
  3. Step 3: Cross multiply
    282,721.12x = 390,211.89 × 167,977.69
  4. Step 4: Simplify right side
    282,721.12x = 65,546,891,892.73
  5. Step 5: Solve for x
    x = 65,546,891,892.73/282,721.12
  6. Step 6: Final answer
    x = 231,842.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.