Home / 247,945.20-371,917.80-148,412.40

Finding the Fourth Proportional to 247,945.20, 371,917.80 and 148,412.40

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Solution

The fourth proportional to 247,945.20, 371,917.80 and 148,412.40 is: 222,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,945.20 : 371,917.80 = 148,412.40 : x
  2. Step 2: Convert to fraction form
    247,945.20/371,917.80 = 148,412.40/x
  3. Step 3: Cross multiply
    247,945.20x = 371,917.80 × 148,412.40
  4. Step 4: Simplify right side
    247,945.20x = 55,197,213,300.72
  5. Step 5: Solve for x
    x = 55,197,213,300.72/247,945.20
  6. Step 6: Final answer
    x = 222,618.60

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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.