Home / 229,938.24-317,311.52-129,336

Finding the Fourth Proportional to 229,938.24, 317,311.52 and 129,336

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Solution

The fourth proportional to 229,938.24, 317,311.52 and 129,336 is: 178,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,938.24 : 317,311.52 = 129,336 : x
  2. Step 2: Convert to fraction form
    229,938.24/317,311.52 = 129,336/x
  3. Step 3: Cross multiply
    229,938.24x = 317,311.52 × 129,336
  4. Step 4: Simplify right side
    229,938.24x = 41,039,802,750.72
  5. Step 5: Solve for x
    x = 41,039,802,750.72/229,938.24
  6. Step 6: Final answer
    x = 178,481.85

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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.