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Finding the Fourth Proportional to 247,207.20, 370,810.80 and 202,920.45

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Solution

The fourth proportional to 247,207.20, 370,810.80 and 202,920.45 is: 304,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,207.20 : 370,810.80 = 202,920.45 : x
  2. Step 2: Convert to fraction form
    247,207.20/370,810.80 = 202,920.45/x
  3. Step 3: Cross multiply
    247,207.20x = 370,810.80 × 202,920.45
  4. Step 4: Simplify right side
    247,207.20x = 75,245,094,400.86
  5. Step 5: Solve for x
    x = 75,245,094,400.86/247,207.20
  6. Step 6: Final answer
    x = 304,380.68

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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.