Home / 282,818.97-390,280.19-155,493.59

Finding the Fourth Proportional to 282,818.97, 390,280.19 and 155,493.59

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Solution

The fourth proportional to 282,818.97, 390,280.19 and 155,493.59 is: 214,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,818.97 : 390,280.19 = 155,493.59 : x
  2. Step 2: Convert to fraction form
    282,818.97/390,280.19 = 155,493.59/x
  3. Step 3: Cross multiply
    282,818.97x = 390,280.19 × 155,493.59
  4. Step 4: Simplify right side
    282,818.97x = 60,686,065,120.11
  5. Step 5: Solve for x
    x = 60,686,065,120.11/282,818.97
  6. Step 6: Final answer
    x = 214,575.65

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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.