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Finding the Fourth Proportional to 181,218.90, 271,569.15 and 133,461.30

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Solution

The fourth proportional to 181,218.90, 271,569.15 and 133,461.30 is: 200,001.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,218.90 : 271,569.15 = 133,461.30 : x
  2. Step 2: Convert to fraction form
    181,218.90/271,569.15 = 133,461.30/x
  3. Step 3: Cross multiply
    181,218.90x = 271,569.15 × 133,461.30
  4. Step 4: Simplify right side
    181,218.90x = 36,243,971,798.90
  5. Step 5: Solve for x
    x = 36,243,971,798.90/181,218.90
  6. Step 6: Final answer
    x = 200,001.06

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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.