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Finding the Fourth Proportional to 298,387.34, 447,760.68 and 108,864.35

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Solution

The fourth proportional to 298,387.34, 447,760.68 and 108,864.35 is: 163,362.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,387.34 : 447,760.68 = 108,864.35 : x
  2. Step 2: Convert to fraction form
    298,387.34/447,760.68 = 108,864.35/x
  3. Step 3: Cross multiply
    298,387.34x = 447,760.68 × 108,864.35
  4. Step 4: Simplify right side
    298,387.34x = 48,745,175,383.76
  5. Step 5: Solve for x
    x = 48,745,175,383.76/298,387.34
  6. Step 6: Final answer
    x = 163,362.08

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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.