Home / 308,531.20-425,766.40-167,219.20

Finding the Fourth Proportional to 308,531.20, 425,766.40 and 167,219.20

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Solution

The fourth proportional to 308,531.20, 425,766.40 and 167,219.20 is: 230,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,531.20 : 425,766.40 = 167,219.20 : x
  2. Step 2: Convert to fraction form
    308,531.20/425,766.40 = 167,219.20/x
  3. Step 3: Cross multiply
    308,531.20x = 425,766.40 × 167,219.20
  4. Step 4: Simplify right side
    308,531.20x = 71,196,316,794.88
  5. Step 5: Solve for x
    x = 71,196,316,794.88/308,531.20
  6. Step 6: Final answer
    x = 230,758.89

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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.