Home / 308,799.12-426,142.14-172,832.52

Finding the Fourth Proportional to 308,799.12, 426,142.14 and 172,832.52

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Solution

The fourth proportional to 308,799.12, 426,142.14 and 172,832.52 is: 238,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,799.12 : 426,142.14 = 172,832.52 : x
  2. Step 2: Convert to fraction form
    308,799.12/426,142.14 = 172,832.52/x
  3. Step 3: Cross multiply
    308,799.12x = 426,142.14 × 172,832.52
  4. Step 4: Simplify right side
    308,799.12x = 73,651,219,934.39
  5. Step 5: Solve for x
    x = 73,651,219,934.39/308,799.12
  6. Step 6: Final answer
    x = 238,508.52

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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.