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Finding the Fourth Proportional to 298,854.81, 412,419.78 and 169,793.50

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Solution

The fourth proportional to 298,854.81, 412,419.78 and 169,793.50 is: 234,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,854.81 : 412,419.78 = 169,793.50 : x
  2. Step 2: Convert to fraction form
    298,854.81/412,419.78 = 169,793.50/x
  3. Step 3: Cross multiply
    298,854.81x = 412,419.78 × 169,793.50
  4. Step 4: Simplify right side
    298,854.81x = 70,026,197,915.43
  5. Step 5: Solve for x
    x = 70,026,197,915.43/298,854.81
  6. Step 6: Final answer
    x = 234,315.11

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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.