Home / 229,799.43-317,123.19-129,197.43

Finding the Fourth Proportional to 229,799.43, 317,123.19 and 129,197.43

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Solution

The fourth proportional to 229,799.43, 317,123.19 and 129,197.43 is: 178,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,799.43 : 317,123.19 = 129,197.43 : x
  2. Step 2: Convert to fraction form
    229,799.43/317,123.19 = 129,197.43/x
  3. Step 3: Cross multiply
    229,799.43x = 317,123.19 × 129,197.43
  4. Step 4: Simplify right side
    229,799.43x = 40,971,501,141.40
  5. Step 5: Solve for x
    x = 40,971,501,141.40/229,799.43
  6. Step 6: Final answer
    x = 178,292.44

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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.