Home / 269,156.20-403,734.30-128,842.60

Finding the Fourth Proportional to 269,156.20, 403,734.30 and 128,842.60

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Solution

The fourth proportional to 269,156.20, 403,734.30 and 128,842.60 is: 193,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,156.20 : 403,734.30 = 128,842.60 : x
  2. Step 2: Convert to fraction form
    269,156.20/403,734.30 = 128,842.60/x
  3. Step 3: Cross multiply
    269,156.20x = 403,734.30 × 128,842.60
  4. Step 4: Simplify right side
    269,156.20x = 52,018,176,921.18
  5. Step 5: Solve for x
    x = 52,018,176,921.18/269,156.20
  6. Step 6: Final answer
    x = 193,263.90

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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.