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Finding the Fourth Proportional to 197,778.87, 296,635.50 and 71,394.87

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Solution

The fourth proportional to 197,778.87, 296,635.50 and 71,394.87 is: 107,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,778.87 : 296,635.50 = 71,394.87 : x
  2. Step 2: Convert to fraction form
    197,778.87/296,635.50 = 71,394.87/x
  3. Step 3: Cross multiply
    197,778.87x = 296,635.50 × 71,394.87
  4. Step 4: Simplify right side
    197,778.87x = 21,178,252,959.89
  5. Step 5: Solve for x
    x = 21,178,252,959.89/197,778.87
  6. Step 6: Final answer
    x = 107,080.46

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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.