Home / 282,696.20-390,104.25-155,371.89

Finding the Fourth Proportional to 282,696.20, 390,104.25 and 155,371.89

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Solution

The fourth proportional to 282,696.20, 390,104.25 and 155,371.89 is: 214,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,696.20 : 390,104.25 = 155,371.89 : x
  2. Step 2: Convert to fraction form
    282,696.20/390,104.25 = 155,371.89/x
  3. Step 3: Cross multiply
    282,696.20x = 390,104.25 × 155,371.89
  4. Step 4: Simplify right side
    282,696.20x = 60,611,234,619.53
  5. Step 5: Solve for x
    x = 60,611,234,619.53/282,696.20
  6. Step 6: Final answer
    x = 214,404.14

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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.