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Finding the Fourth Proportional to 498,306.33, 687,653.15 and 271,953.45

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Solution

The fourth proportional to 498,306.33, 687,653.15 and 271,953.45 is: 375,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,306.33 : 687,653.15 = 271,953.45 : x
  2. Step 2: Convert to fraction form
    498,306.33/687,653.15 = 271,953.45/x
  3. Step 3: Cross multiply
    498,306.33x = 687,653.15 × 271,953.45
  4. Step 4: Simplify right side
    498,306.33x = 187,009,645,186.10
  5. Step 5: Solve for x
    x = 187,009,645,186.10/498,306.33
  6. Step 6: Final answer
    x = 375,290.53

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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.