Home / 229,809.20-317,182.12-149,123.44

Finding the Fourth Proportional to 229,809.20, 317,182.12 and 149,123.44

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Solution

The fourth proportional to 229,809.20, 317,182.12 and 149,123.44 is: 205,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,809.20 : 317,182.12 = 149,123.44 : x
  2. Step 2: Convert to fraction form
    229,809.20/317,182.12 = 149,123.44/x
  3. Step 3: Cross multiply
    229,809.20x = 317,182.12 × 149,123.44
  4. Step 4: Simplify right side
    229,809.20x = 47,299,288,840.89
  5. Step 5: Solve for x
    x = 47,299,288,840.89/229,809.20
  6. Step 6: Final answer
    x = 205,819.82

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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.