Home / 282,691.45-390,097.70-155,367.14

Finding the Fourth Proportional to 282,691.45, 390,097.70 and 155,367.14

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Solution

The fourth proportional to 282,691.45, 390,097.70 and 155,367.14 is: 214,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,691.45 : 390,097.70 = 155,367.14 : x
  2. Step 2: Convert to fraction form
    282,691.45/390,097.70 = 155,367.14/x
  3. Step 3: Cross multiply
    282,691.45x = 390,097.70 × 155,367.14
  4. Step 4: Simplify right side
    282,691.45x = 60,608,363,969.58
  5. Step 5: Solve for x
    x = 60,608,363,969.58/282,691.45
  6. Step 6: Final answer
    x = 214,397.59

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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.