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Finding the Fourth Proportional to 181,223.40, 271,567.80 and 131,408.40

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Solution

The fourth proportional to 181,223.40, 271,567.80 and 131,408.40 is: 196,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,223.40 : 271,567.80 = 131,408.40 : x
  2. Step 2: Convert to fraction form
    181,223.40/271,567.80 = 131,408.40/x
  3. Step 3: Cross multiply
    181,223.40x = 271,567.80 × 131,408.40
  4. Step 4: Simplify right side
    181,223.40x = 35,686,290,089.52
  5. Step 5: Solve for x
    x = 35,686,290,089.52/181,223.40
  6. Step 6: Final answer
    x = 196,918.78

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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.