Home / 230,549.85-318,158.16-128,575.42

Finding the Fourth Proportional to 230,549.85, 318,158.16 and 128,575.42

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Solution

The fourth proportional to 230,549.85, 318,158.16 and 128,575.42 is: 177,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,549.85 : 318,158.16 = 128,575.42 : x
  2. Step 2: Convert to fraction form
    230,549.85/318,158.16 = 128,575.42/x
  3. Step 3: Cross multiply
    230,549.85x = 318,158.16 × 128,575.42
  4. Step 4: Simplify right side
    230,549.85x = 40,907,319,048.43
  5. Step 5: Solve for x
    x = 40,907,319,048.43/230,549.85
  6. Step 6: Final answer
    x = 177,433.73

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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.