Home / 418,623.82-627,957.45-138,162.94

Finding the Fourth Proportional to 418,623.82, 627,957.45 and 138,162.94

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Solution

The fourth proportional to 418,623.82, 627,957.45 and 138,162.94 is: 207,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,623.82 : 627,957.45 = 138,162.94 : x
  2. Step 2: Convert to fraction form
    418,623.82/627,957.45 = 138,162.94/x
  3. Step 3: Cross multiply
    418,623.82x = 627,957.45 × 138,162.94
  4. Step 4: Simplify right side
    418,623.82x = 86,760,447,486.90
  5. Step 5: Solve for x
    x = 86,760,447,486.90/418,623.82
  6. Step 6: Final answer
    x = 207,251.58

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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.