Home / 282,752.26-390,198.54-155,428.63

Finding the Fourth Proportional to 282,752.26, 390,198.54 and 155,428.63

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Solution

The fourth proportional to 282,752.26, 390,198.54 and 155,428.63 is: 214,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,752.26 : 390,198.54 = 155,428.63 : x
  2. Step 2: Convert to fraction form
    282,752.26/390,198.54 = 155,428.63/x
  3. Step 3: Cross multiply
    282,752.26x = 390,198.54 × 155,428.63
  4. Step 4: Simplify right side
    282,752.26x = 60,648,024,500.20
  5. Step 5: Solve for x
    x = 60,648,024,500.20/282,752.26
  6. Step 6: Final answer
    x = 214,491.74

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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.