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Finding the Fourth Proportional to 235,123.80, 324,472.75 and 127,694.60

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Solution

The fourth proportional to 235,123.80, 324,472.75 and 127,694.60 is: 176,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,123.80 : 324,472.75 = 127,694.60 : x
  2. Step 2: Convert to fraction form
    235,123.80/324,472.75 = 127,694.60/x
  3. Step 3: Cross multiply
    235,123.80x = 324,472.75 × 127,694.60
  4. Step 4: Simplify right side
    235,123.80x = 41,433,418,022.15
  5. Step 5: Solve for x
    x = 41,433,418,022.15/235,123.80
  6. Step 6: Final answer
    x = 176,219.58

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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.