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Finding the Fourth Proportional to 228,287.01, 315,045.36 and 126,310.81

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Solution

The fourth proportional to 228,287.01, 315,045.36 and 126,310.81 is: 174,314.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,287.01 : 315,045.36 = 126,310.81 : x
  2. Step 2: Convert to fraction form
    228,287.01/315,045.36 = 126,310.81/x
  3. Step 3: Cross multiply
    228,287.01x = 315,045.36 × 126,310.81
  4. Step 4: Simplify right side
    228,287.01x = 39,793,634,608.34
  5. Step 5: Solve for x
    x = 39,793,634,608.34/228,287.01
  6. Step 6: Final answer
    x = 174,314.06

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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.