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Finding the Fourth Proportional to 298,770.76, 448,154.92 and 121,276.27

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Solution

The fourth proportional to 298,770.76, 448,154.92 and 121,276.27 is: 181,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,770.76 : 448,154.92 = 121,276.27 : x
  2. Step 2: Convert to fraction form
    298,770.76/448,154.92 = 121,276.27/x
  3. Step 3: Cross multiply
    298,770.76x = 448,154.92 × 121,276.27
  4. Step 4: Simplify right side
    298,770.76x = 54,350,554,535.78
  5. Step 5: Solve for x
    x = 54,350,554,535.78/298,770.76
  6. Step 6: Final answer
    x = 181,913.90

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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.