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Finding the Fourth Proportional to 619,314.10, 928,998.15 and 170,023.30

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Solution

The fourth proportional to 619,314.10, 928,998.15 and 170,023.30 is: 255,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,314.10 : 928,998.15 = 170,023.30 : x
  2. Step 2: Convert to fraction form
    619,314.10/928,998.15 = 170,023.30/x
  3. Step 3: Cross multiply
    619,314.10x = 928,998.15 × 170,023.30
  4. Step 4: Simplify right side
    619,314.10x = 157,951,331,156.90
  5. Step 5: Solve for x
    x = 157,951,331,156.90/619,314.10
  6. Step 6: Final answer
    x = 255,042.36

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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.