Home / 282,764.52-390,189.96-155,437.38

Finding the Fourth Proportional to 282,764.52, 390,189.96 and 155,437.38

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Solution

The fourth proportional to 282,764.52, 390,189.96 and 155,437.38 is: 214,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,764.52 : 390,189.96 = 155,437.38 : x
  2. Step 2: Convert to fraction form
    282,764.52/390,189.96 = 155,437.38/x
  3. Step 3: Cross multiply
    282,764.52x = 390,189.96 × 155,437.38
  4. Step 4: Simplify right side
    282,764.52x = 60,650,105,084.70
  5. Step 5: Solve for x
    x = 60,650,105,084.70/282,764.52
  6. Step 6: Final answer
    x = 214,489.80

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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.