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Finding the Fourth Proportional to 228,538.32, 315,384.24 and 126,566.88

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Solution

The fourth proportional to 228,538.32, 315,384.24 and 126,566.88 is: 174,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,538.32 : 315,384.24 = 126,566.88 : x
  2. Step 2: Convert to fraction form
    228,538.32/315,384.24 = 126,566.88/x
  3. Step 3: Cross multiply
    228,538.32x = 315,384.24 × 126,566.88
  4. Step 4: Simplify right side
    228,538.32x = 39,917,199,257.97
  5. Step 5: Solve for x
    x = 39,917,199,257.97/228,538.32
  6. Step 6: Final answer
    x = 174,663.05

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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.