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Finding the Fourth Proportional to 229,964.88, 317,356.39 and 129,362.88

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Solution

The fourth proportional to 229,964.88, 317,356.39 and 129,362.88 is: 178,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,964.88 : 317,356.39 = 129,362.88 : x
  2. Step 2: Convert to fraction form
    229,964.88/317,356.39 = 129,362.88/x
  3. Step 3: Cross multiply
    229,964.88x = 317,356.39 × 129,362.88
  4. Step 4: Simplify right side
    229,964.88x = 41,054,136,596.80
  5. Step 5: Solve for x
    x = 41,054,136,596.80/229,964.88
  6. Step 6: Final answer
    x = 178,523.51

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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.