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Finding the Fourth Proportional to 228,806.12, 315,754.56 and 126,832.68

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Solution

The fourth proportional to 228,806.12, 315,754.56 and 126,832.68 is: 175,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,806.12 : 315,754.56 = 126,832.68 : x
  2. Step 2: Convert to fraction form
    228,806.12/315,754.56 = 126,832.68/x
  3. Step 3: Cross multiply
    228,806.12x = 315,754.56 × 126,832.68
  4. Step 4: Simplify right side
    228,806.12x = 40,047,997,067.02
  5. Step 5: Solve for x
    x = 40,047,997,067.02/228,806.12
  6. Step 6: Final answer
    x = 175,030.27

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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.