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Finding the Fourth Proportional to 298,487.08, 447,730.70 and 98,753.80

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Solution

The fourth proportional to 298,487.08, 447,730.70 and 98,753.80 is: 148,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,487.08 : 447,730.70 = 98,753.80 : x
  2. Step 2: Convert to fraction form
    298,487.08/447,730.70 = 98,753.80/x
  3. Step 3: Cross multiply
    298,487.08x = 447,730.70 × 98,753.80
  4. Step 4: Simplify right side
    298,487.08x = 44,215,108,001.66
  5. Step 5: Solve for x
    x = 44,215,108,001.66/298,487.08
  6. Step 6: Final answer
    x = 148,130.73

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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.