Home / 195,999.60-270,540.36-155,784.72

Finding the Fourth Proportional to 195,999.60, 270,540.36 and 155,784.72

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Solution

The fourth proportional to 195,999.60, 270,540.36 and 155,784.72 is: 215,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,999.60 : 270,540.36 = 155,784.72 : x
  2. Step 2: Convert to fraction form
    195,999.60/270,540.36 = 155,784.72/x
  3. Step 3: Cross multiply
    195,999.60x = 270,540.36 × 155,784.72
  4. Step 4: Simplify right side
    195,999.60x = 42,146,054,231.30
  5. Step 5: Solve for x
    x = 42,146,054,231.30/195,999.60
  6. Step 6: Final answer
    x = 215,031.33

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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.