Home / 282,766.08-390,217.44-155,443.84

Finding the Fourth Proportional to 282,766.08, 390,217.44 and 155,443.84

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Solution

The fourth proportional to 282,766.08, 390,217.44 and 155,443.84 is: 214,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,766.08 : 390,217.44 = 155,443.84 : x
  2. Step 2: Convert to fraction form
    282,766.08/390,217.44 = 155,443.84/x
  3. Step 3: Cross multiply
    282,766.08x = 390,217.44 × 155,443.84
  4. Step 4: Simplify right side
    282,766.08x = 60,656,897,308.57
  5. Step 5: Solve for x
    x = 60,656,897,308.57/282,766.08
  6. Step 6: Final answer
    x = 214,512.64

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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.