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Finding the Fourth Proportional to 181,208.40, 271,639.80 and 141,205.20

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Solution

The fourth proportional to 181,208.40, 271,639.80 and 141,205.20 is: 211,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,208.40 : 271,639.80 = 141,205.20 : x
  2. Step 2: Convert to fraction form
    181,208.40/271,639.80 = 141,205.20/x
  3. Step 3: Cross multiply
    181,208.40x = 271,639.80 × 141,205.20
  4. Step 4: Simplify right side
    181,208.40x = 38,356,952,286.96
  5. Step 5: Solve for x
    x = 38,356,952,286.96/181,208.40
  6. Step 6: Final answer
    x = 211,673.15

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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.