Home / 282,714.68-390,151.26-155,389.88

Finding the Fourth Proportional to 282,714.68, 390,151.26 and 155,389.88

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Solution

The fourth proportional to 282,714.68, 390,151.26 and 155,389.88 is: 214,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,714.68 : 390,151.26 = 155,389.88 : x
  2. Step 2: Convert to fraction form
    282,714.68/390,151.26 = 155,389.88/x
  3. Step 3: Cross multiply
    282,714.68x = 390,151.26 × 155,389.88
  4. Step 4: Simplify right side
    282,714.68x = 60,625,557,473.25
  5. Step 5: Solve for x
    x = 60,625,557,473.25/282,714.68
  6. Step 6: Final answer
    x = 214,440.78

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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.