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Finding the Fourth Proportional to 298,446.88, 412,008.80 and 230,310.76

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Solution

The fourth proportional to 298,446.88, 412,008.80 and 230,310.76 is: 317,946.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,446.88 : 412,008.80 = 230,310.76 : x
  2. Step 2: Convert to fraction form
    298,446.88/412,008.80 = 230,310.76/x
  3. Step 3: Cross multiply
    298,446.88x = 412,008.80 × 230,310.76
  4. Step 4: Simplify right side
    298,446.88x = 94,890,059,854.69
  5. Step 5: Solve for x
    x = 94,890,059,854.69/298,446.88
  6. Step 6: Final answer
    x = 317,946.23

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1.5x scale

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.