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Finding the Fourth Proportional to 247,711.54, 341,842.56 and 145,740.84

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Solution

The fourth proportional to 247,711.54, 341,842.56 and 145,740.84 is: 201,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,711.54 : 341,842.56 = 145,740.84 : x
  2. Step 2: Convert to fraction form
    247,711.54/341,842.56 = 145,740.84/x
  3. Step 3: Cross multiply
    247,711.54x = 341,842.56 × 145,740.84
  4. Step 4: Simplify right side
    247,711.54x = 49,820,421,842.15
  5. Step 5: Solve for x
    x = 49,820,421,842.15/247,711.54
  6. Step 6: Final answer
    x = 201,122.73

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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.