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Finding the Fourth Proportional to 397,229.95, 595,878.95 and 112,921.57

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Solution

The fourth proportional to 397,229.95, 595,878.95 and 112,921.57 is: 169,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,229.95 : 595,878.95 = 112,921.57 : x
  2. Step 2: Convert to fraction form
    397,229.95/595,878.95 = 112,921.57/x
  3. Step 3: Cross multiply
    397,229.95x = 595,878.95 × 112,921.57
  4. Step 4: Simplify right side
    397,229.95x = 67,287,585,999.34
  5. Step 5: Solve for x
    x = 67,287,585,999.34/397,229.95
  6. Step 6: Final answer
    x = 169,392.03

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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.