Home / 217,770.66-326,740.50-84,744.36

Finding the Fourth Proportional to 217,770.66, 326,740.50 and 84,744.36

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Solution

The fourth proportional to 217,770.66, 326,740.50 and 84,744.36 is: 127,149.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,770.66 : 326,740.50 = 84,744.36 : x
  2. Step 2: Convert to fraction form
    217,770.66/326,740.50 = 84,744.36/x
  3. Step 3: Cross multiply
    217,770.66x = 326,740.50 × 84,744.36
  4. Step 4: Simplify right side
    217,770.66x = 27,689,414,558.58
  5. Step 5: Solve for x
    x = 27,689,414,558.58/217,770.66
  6. Step 6: Final answer
    x = 127,149.43

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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.