Home / 282,500.91-389,851.52-155,184.71

Finding the Fourth Proportional to 282,500.91, 389,851.52 and 155,184.71

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Solution

The fourth proportional to 282,500.91, 389,851.52 and 155,184.71 is: 214,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,500.91 : 389,851.52 = 155,184.71 : x
  2. Step 2: Convert to fraction form
    282,500.91/389,851.52 = 155,184.71/x
  3. Step 3: Cross multiply
    282,500.91x = 389,851.52 × 155,184.71
  4. Step 4: Simplify right side
    282,500.91x = 60,498,992,349.08
  5. Step 5: Solve for x
    x = 60,498,992,349.08/282,500.91
  6. Step 6: Final answer
    x = 214,155.04

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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.