Home / 282,758.28-390,196.51-155,432.95

Finding the Fourth Proportional to 282,758.28, 390,196.51 and 155,432.95

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Solution

The fourth proportional to 282,758.28, 390,196.51 and 155,432.95 is: 214,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,758.28 : 390,196.51 = 155,432.95 : x
  2. Step 2: Convert to fraction form
    282,758.28/390,196.51 = 155,432.95/x
  3. Step 3: Cross multiply
    282,758.28x = 390,196.51 × 155,432.95
  4. Step 4: Simplify right side
    282,758.28x = 60,649,394,629.00
  5. Step 5: Solve for x
    x = 60,649,394,629.00/282,758.28
  6. Step 6: Final answer
    x = 214,492.02

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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.