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Finding the Fourth Proportional to 298,981.80, 448,472.70 and 156,632.40

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Solution

The fourth proportional to 298,981.80, 448,472.70 and 156,632.40 is: 234,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,981.80 : 448,472.70 = 156,632.40 : x
  2. Step 2: Convert to fraction form
    298,981.80/448,472.70 = 156,632.40/x
  3. Step 3: Cross multiply
    298,981.80x = 448,472.70 × 156,632.40
  4. Step 4: Simplify right side
    298,981.80x = 70,245,355,335.48
  5. Step 5: Solve for x
    x = 70,245,355,335.48/298,981.80
  6. Step 6: Final answer
    x = 234,948.60

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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.