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Finding the Fourth Proportional to 229,635.76, 316,899.03 and 126,271.76

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Solution

The fourth proportional to 229,635.76, 316,899.03 and 126,271.76 is: 174,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,635.76 : 316,899.03 = 126,271.76 : x
  2. Step 2: Convert to fraction form
    229,635.76/316,899.03 = 126,271.76/x
  3. Step 3: Cross multiply
    229,635.76x = 316,899.03 × 126,271.76
  4. Step 4: Simplify right side
    229,635.76x = 40,015,398,931.97
  5. Step 5: Solve for x
    x = 40,015,398,931.97/229,635.76
  6. Step 6: Final answer
    x = 174,255.96

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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.