Home / 247,869.76-342,059.12-140,439.60

Finding the Fourth Proportional to 247,869.76, 342,059.12 and 140,439.60

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Solution

The fourth proportional to 247,869.76, 342,059.12 and 140,439.60 is: 193,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,869.76 : 342,059.12 = 140,439.60 : x
  2. Step 2: Convert to fraction form
    247,869.76/342,059.12 = 140,439.60/x
  3. Step 3: Cross multiply
    247,869.76x = 342,059.12 × 140,439.60
  4. Step 4: Simplify right side
    247,869.76x = 48,038,645,989.15
  5. Step 5: Solve for x
    x = 48,038,645,989.15/247,869.76
  6. Step 6: Final answer
    x = 193,806.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.