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Finding the Fourth Proportional to 229,375.78, 316,527.74 and 127,407.80

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Solution

The fourth proportional to 229,375.78, 316,527.74 and 127,407.80 is: 175,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,375.78 : 316,527.74 = 127,407.80 : x
  2. Step 2: Convert to fraction form
    229,375.78/316,527.74 = 127,407.80/x
  3. Step 3: Cross multiply
    229,375.78x = 316,527.74 × 127,407.80
  4. Step 4: Simplify right side
    229,375.78x = 40,328,102,992.37
  5. Step 5: Solve for x
    x = 40,328,102,992.37/229,375.78
  6. Step 6: Final answer
    x = 175,816.74

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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.