Home / 212,819.80-319,229.70-194,848.60

Finding the Fourth Proportional to 212,819.80, 319,229.70 and 194,848.60

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Solution

The fourth proportional to 212,819.80, 319,229.70 and 194,848.60 is: 292,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,819.80 : 319,229.70 = 194,848.60 : x
  2. Step 2: Convert to fraction form
    212,819.80/319,229.70 = 194,848.60/x
  3. Step 3: Cross multiply
    212,819.80x = 319,229.70 × 194,848.60
  4. Step 4: Simplify right side
    212,819.80x = 62,201,460,123.42
  5. Step 5: Solve for x
    x = 62,201,460,123.42/212,819.80
  6. Step 6: Final answer
    x = 292,272.90

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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.