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Finding the Fourth Proportional to 229,336.89, 316,495.41 and 127,362.81

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Solution

The fourth proportional to 229,336.89, 316,495.41 and 127,362.81 is: 175,766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,336.89 : 316,495.41 = 127,362.81 : x
  2. Step 2: Convert to fraction form
    229,336.89/316,495.41 = 127,362.81/x
  3. Step 3: Cross multiply
    229,336.89x = 316,495.41 × 127,362.81
  4. Step 4: Simplify right side
    229,336.89x = 40,309,744,769.70
  5. Step 5: Solve for x
    x = 40,309,744,769.70/229,336.89
  6. Step 6: Final answer
    x = 175,766.51

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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.