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Finding the Fourth Proportional to 270,477.38, 405,711.28 and 80,938.29

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Solution

The fourth proportional to 270,477.38, 405,711.28 and 80,938.29 is: 121,406.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,477.38 : 405,711.28 = 80,938.29 : x
  2. Step 2: Convert to fraction form
    270,477.38/405,711.28 = 80,938.29/x
  3. Step 3: Cross multiply
    270,477.38x = 405,711.28 × 80,938.29
  4. Step 4: Simplify right side
    270,477.38x = 32,837,576,577.38
  5. Step 5: Solve for x
    x = 32,837,576,577.38/270,477.38
  6. Step 6: Final answer
    x = 121,406.00

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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.