Home / 282,757.52-390,195.48-155,432.20

Finding the Fourth Proportional to 282,757.52, 390,195.48 and 155,432.20

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Solution

The fourth proportional to 282,757.52, 390,195.48 and 155,432.20 is: 214,491.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,757.52 : 390,195.48 = 155,432.20 : x
  2. Step 2: Convert to fraction form
    282,757.52/390,195.48 = 155,432.20/x
  3. Step 3: Cross multiply
    282,757.52x = 390,195.48 × 155,432.20
  4. Step 4: Simplify right side
    282,757.52x = 60,648,941,886.46
  5. Step 5: Solve for x
    x = 60,648,941,886.46/282,757.52
  6. Step 6: Final answer
    x = 214,491.00

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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.