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Finding the Fourth Proportional to 298,983.80, 448,475.70 and 156,634.40

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Solution

The fourth proportional to 298,983.80, 448,475.70 and 156,634.40 is: 234,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,983.80 : 448,475.70 = 156,634.40 : x
  2. Step 2: Convert to fraction form
    298,983.80/448,475.70 = 156,634.40/x
  3. Step 3: Cross multiply
    298,983.80x = 448,475.70 × 156,634.40
  4. Step 4: Simplify right side
    298,983.80x = 70,246,722,184.08
  5. Step 5: Solve for x
    x = 70,246,722,184.08/298,983.80
  6. Step 6: Final answer
    x = 234,951.60

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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.