Home / 282,701.28-390,126.60-155,382.24

Finding the Fourth Proportional to 282,701.28, 390,126.60 and 155,382.24

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Solution

The fourth proportional to 282,701.28, 390,126.60 and 155,382.24 is: 214,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,701.28 : 390,126.60 = 155,382.24 : x
  2. Step 2: Convert to fraction form
    282,701.28/390,126.60 = 155,382.24/x
  3. Step 3: Cross multiply
    282,701.28x = 390,126.60 × 155,382.24
  4. Step 4: Simplify right side
    282,701.28x = 60,618,744,991.58
  5. Step 5: Solve for x
    x = 60,618,744,991.58/282,701.28
  6. Step 6: Final answer
    x = 214,426.85

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1.5x scale

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.