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Finding the Fourth Proportional to 317,229.89, 437,788.40 and 173,990.50

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Solution

The fourth proportional to 317,229.89, 437,788.40 and 173,990.50 is: 240,113.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,229.89 : 437,788.40 = 173,990.50 : x
  2. Step 2: Convert to fraction form
    317,229.89/437,788.40 = 173,990.50/x
  3. Step 3: Cross multiply
    317,229.89x = 437,788.40 × 173,990.50
  4. Step 4: Simplify right side
    317,229.89x = 76,171,020,645.78
  5. Step 5: Solve for x
    x = 76,171,020,645.78/317,229.89
  6. Step 6: Final answer
    x = 240,113.00

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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.