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Finding the Fourth Proportional to 270,010.40, 404,938.20 and 80,462.84

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Solution

The fourth proportional to 270,010.40, 404,938.20 and 80,462.84 is: 120,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,010.40 : 404,938.20 = 80,462.84 : x
  2. Step 2: Convert to fraction form
    270,010.40/404,938.20 = 80,462.84/x
  3. Step 3: Cross multiply
    270,010.40x = 404,938.20 × 80,462.84
  4. Step 4: Simplify right side
    270,010.40x = 32,582,477,596.49
  5. Step 5: Solve for x
    x = 32,582,477,596.49/270,010.40
  6. Step 6: Final answer
    x = 120,671.19

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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.