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Finding the Fourth Proportional to 247,888.89, 342,086.65 and 134,711.64

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Solution

The fourth proportional to 247,888.89, 342,086.65 and 134,711.64 is: 185,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,888.89 : 342,086.65 = 134,711.64 : x
  2. Step 2: Convert to fraction form
    247,888.89/342,086.65 = 134,711.64/x
  3. Step 3: Cross multiply
    247,888.89x = 342,086.65 × 134,711.64
  4. Step 4: Simplify right side
    247,888.89x = 46,083,053,643.61
  5. Step 5: Solve for x
    x = 46,083,053,643.61/247,888.89
  6. Step 6: Final answer
    x = 185,902.05

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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.