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Finding the Fourth Proportional to 181,561.20, 271,804.20 and 135,020.40

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Solution

The fourth proportional to 181,561.20, 271,804.20 and 135,020.40 is: 202,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,561.20 : 271,804.20 = 135,020.40 : x
  2. Step 2: Convert to fraction form
    181,561.20/271,804.20 = 135,020.40/x
  3. Step 3: Cross multiply
    181,561.20x = 271,804.20 × 135,020.40
  4. Step 4: Simplify right side
    181,561.20x = 36,699,111,805.68
  5. Step 5: Solve for x
    x = 36,699,111,805.68/181,561.20
  6. Step 6: Final answer
    x = 202,130.81

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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.