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Finding the Fourth Proportional to 230,549.03, 318,157.03 and 128,574.61

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Solution

The fourth proportional to 230,549.03, 318,157.03 and 128,574.61 is: 177,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,549.03 : 318,157.03 = 128,574.61 : x
  2. Step 2: Convert to fraction form
    230,549.03/318,157.03 = 128,574.61/x
  3. Step 3: Cross multiply
    230,549.03x = 318,157.03 × 128,574.61
  4. Step 4: Simplify right side
    230,549.03x = 40,906,915,416.33
  5. Step 5: Solve for x
    x = 40,906,915,416.33/230,549.03
  6. Step 6: Final answer
    x = 177,432.60

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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.