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Finding the Fourth Proportional to 309,819.02, 427,565.80 and 193,602.68

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Solution

The fourth proportional to 309,819.02, 427,565.80 and 193,602.68 is: 267,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,819.02 : 427,565.80 = 193,602.68 : x
  2. Step 2: Convert to fraction form
    309,819.02/427,565.80 = 193,602.68/x
  3. Step 3: Cross multiply
    309,819.02x = 427,565.80 × 193,602.68
  4. Step 4: Simplify right side
    309,819.02x = 82,777,885,341.25
  5. Step 5: Solve for x
    x = 82,777,885,341.25/309,819.02
  6. Step 6: Final answer
    x = 267,181.42

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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.