Home / 282,691.32-390,097.53-155,367.02

Finding the Fourth Proportional to 282,691.32, 390,097.53 and 155,367.02

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Solution

The fourth proportional to 282,691.32, 390,097.53 and 155,367.02 is: 214,397.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,691.32 : 390,097.53 = 155,367.02 : x
  2. Step 2: Convert to fraction form
    282,691.32/390,097.53 = 155,367.02/x
  3. Step 3: Cross multiply
    282,691.32x = 390,097.53 × 155,367.02
  4. Step 4: Simplify right side
    282,691.32x = 60,608,288,794.97
  5. Step 5: Solve for x
    x = 60,608,288,794.97/282,691.32
  6. Step 6: Final answer
    x = 214,397.42

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1.5x scale

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.