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Finding the Fourth Proportional to 342,415.62, 512,874.45 and 173,645.10

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Solution

The fourth proportional to 342,415.62, 512,874.45 and 173,645.10 is: 260,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,415.62 : 512,874.45 = 173,645.10 : x
  2. Step 2: Convert to fraction form
    342,415.62/512,874.45 = 173,645.10/x
  3. Step 3: Cross multiply
    342,415.62x = 512,874.45 × 173,645.10
  4. Step 4: Simplify right side
    342,415.62x = 89,058,135,157.70
  5. Step 5: Solve for x
    x = 89,058,135,157.70/342,415.62
  6. Step 6: Final answer
    x = 260,087.83

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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.