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Finding the Fourth Proportional to 314,872.20, 472,005.90 and 104,401.80

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Solution

The fourth proportional to 314,872.20, 472,005.90 and 104,401.80 is: 156,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,872.20 : 472,005.90 = 104,401.80 : x
  2. Step 2: Convert to fraction form
    314,872.20/472,005.90 = 104,401.80/x
  3. Step 3: Cross multiply
    314,872.20x = 472,005.90 × 104,401.80
  4. Step 4: Simplify right side
    314,872.20x = 49,278,265,570.62
  5. Step 5: Solve for x
    x = 49,278,265,570.62/314,872.20
  6. Step 6: Final answer
    x = 156,502.43

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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.