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Finding the Fourth Proportional to 247,998.70, 371,998.05 and 148,465.90

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Solution

The fourth proportional to 247,998.70, 371,998.05 and 148,465.90 is: 222,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,998.70 : 371,998.05 = 148,465.90 : x
  2. Step 2: Convert to fraction form
    247,998.70/371,998.05 = 148,465.90/x
  3. Step 3: Cross multiply
    247,998.70x = 371,998.05 × 148,465.90
  4. Step 4: Simplify right side
    247,998.70x = 55,229,025,291.50
  5. Step 5: Solve for x
    x = 55,229,025,291.50/247,998.70
  6. Step 6: Final answer
    x = 222,698.85

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1.5x scale

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.