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Finding the Fourth Proportional to 229,340.82, 316,479.50 and 127,372.80

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Solution

The fourth proportional to 229,340.82, 316,479.50 and 127,372.80 is: 175,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,340.82 : 316,479.50 = 127,372.80 : x
  2. Step 2: Convert to fraction form
    229,340.82/316,479.50 = 127,372.80/x
  3. Step 3: Cross multiply
    229,340.82x = 316,479.50 × 127,372.80
  4. Step 4: Simplify right side
    229,340.82x = 40,310,880,057.60
  5. Step 5: Solve for x
    x = 40,310,880,057.60/229,340.82
  6. Step 6: Final answer
    x = 175,768.45

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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.