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Finding the Fourth Proportional to 230,527.41, 318,129.22 and 128,559.32

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Solution

The fourth proportional to 230,527.41, 318,129.22 and 128,559.32 is: 177,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,527.41 : 318,129.22 = 128,559.32 : x
  2. Step 2: Convert to fraction form
    230,527.41/318,129.22 = 128,559.32/x
  3. Step 3: Cross multiply
    230,527.41x = 318,129.22 × 128,559.32
  4. Step 4: Simplify right side
    230,527.41x = 40,898,476,195.33
  5. Step 5: Solve for x
    x = 40,898,476,195.33/230,527.41
  6. Step 6: Final answer
    x = 177,412.64

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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.