Home / 205,844.66-308,951.52-172,320.52

Finding the Fourth Proportional to 205,844.66, 308,951.52 and 172,320.52

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Solution

The fourth proportional to 205,844.66, 308,951.52 and 172,320.52 is: 258,635.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,844.66 : 308,951.52 = 172,320.52 : x
  2. Step 2: Convert to fraction form
    205,844.66/308,951.52 = 172,320.52/x
  3. Step 3: Cross multiply
    205,844.66x = 308,951.52 × 172,320.52
  4. Step 4: Simplify right side
    205,844.66x = 53,238,686,581.19
  5. Step 5: Solve for x
    x = 53,238,686,581.19/205,844.66
  6. Step 6: Final answer
    x = 258,635.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.