Home / 230,549.60-318,157.82-128,575.17

Finding the Fourth Proportional to 230,549.60, 318,157.82 and 128,575.17

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Solution

The fourth proportional to 230,549.60, 318,157.82 and 128,575.17 is: 177,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,549.60 : 318,157.82 = 128,575.17 : x
  2. Step 2: Convert to fraction form
    230,549.60/318,157.82 = 128,575.17/x
  3. Step 3: Cross multiply
    230,549.60x = 318,157.82 × 128,575.17
  4. Step 4: Simplify right side
    230,549.60x = 40,907,195,150.45
  5. Step 5: Solve for x
    x = 40,907,195,150.45/230,549.60
  6. Step 6: Final answer
    x = 177,433.39

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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.