Home / 231,635.20-347,258.40-120,827.20

Finding the Fourth Proportional to 231,635.20, 347,258.40 and 120,827.20

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Solution

The fourth proportional to 231,635.20, 347,258.40 and 120,827.20 is: 181,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,635.20 : 347,258.40 = 120,827.20 : x
  2. Step 2: Convert to fraction form
    231,635.20/347,258.40 = 120,827.20/x
  3. Step 3: Cross multiply
    231,635.20x = 347,258.40 × 120,827.20
  4. Step 4: Simplify right side
    231,635.20x = 41,958,260,148.48
  5. Step 5: Solve for x
    x = 41,958,260,148.48/231,635.20
  6. Step 6: Final answer
    x = 181,139.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.