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Finding the Fourth Proportional to 228,144.79, 314,841.90 and 126,164.98

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Solution

The fourth proportional to 228,144.79, 314,841.90 and 126,164.98 is: 174,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,144.79 : 314,841.90 = 126,164.98 : x
  2. Step 2: Convert to fraction form
    228,144.79/314,841.90 = 126,164.98/x
  3. Step 3: Cross multiply
    228,144.79x = 314,841.90 × 126,164.98
  4. Step 4: Simplify right side
    228,144.79x = 39,722,022,016.66
  5. Step 5: Solve for x
    x = 39,722,022,016.66/228,144.79
  6. Step 6: Final answer
    x = 174,108.83

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1.5x scale

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.