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Finding the Fourth Proportional to 230,407.68, 318,003.84 and 134,908.80

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Solution

The fourth proportional to 230,407.68, 318,003.84 and 134,908.80 is: 186,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,407.68 : 318,003.84 = 134,908.80 : x
  2. Step 2: Convert to fraction form
    230,407.68/318,003.84 = 134,908.80/x
  3. Step 3: Cross multiply
    230,407.68x = 318,003.84 × 134,908.80
  4. Step 4: Simplify right side
    230,407.68x = 42,901,516,449.79
  5. Step 5: Solve for x
    x = 42,901,516,449.79/230,407.68
  6. Step 6: Final answer
    x = 186,198.29

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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.