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Finding the Fourth Proportional to 317,122.50, 437,642.28 and 173,888.04

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Solution

The fourth proportional to 317,122.50, 437,642.28 and 173,888.04 is: 239,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,122.50 : 437,642.28 = 173,888.04 : x
  2. Step 2: Convert to fraction form
    317,122.50/437,642.28 = 173,888.04/x
  3. Step 3: Cross multiply
    317,122.50x = 437,642.28 × 173,888.04
  4. Step 4: Simplify right side
    317,122.50x = 76,100,758,290.33
  5. Step 5: Solve for x
    x = 76,100,758,290.33/317,122.50
  6. Step 6: Final answer
    x = 239,972.75

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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.