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Finding the Fourth Proportional to 269,715.20, 405,010.20 and 181,360.40

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Solution

The fourth proportional to 269,715.20, 405,010.20 and 181,360.40 is: 272,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,715.20 : 405,010.20 = 181,360.40 : x
  2. Step 2: Convert to fraction form
    269,715.20/405,010.20 = 181,360.40/x
  3. Step 3: Cross multiply
    269,715.20x = 405,010.20 × 181,360.40
  4. Step 4: Simplify right side
    269,715.20x = 73,452,811,876.08
  5. Step 5: Solve for x
    x = 73,452,811,876.08/269,715.20
  6. Step 6: Final answer
    x = 272,334.71

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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.