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Finding the Fourth Proportional to 181,321.63, 271,908.63 and 81,455.00

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Solution

The fourth proportional to 181,321.63, 271,908.63 and 81,455.00 is: 122,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,321.63 : 271,908.63 = 81,455.00 : x
  2. Step 2: Convert to fraction form
    181,321.63/271,908.63 = 81,455.00/x
  3. Step 3: Cross multiply
    181,321.63x = 271,908.63 × 81,455.00
  4. Step 4: Simplify right side
    181,321.63x = 22,148,316,097.11
  5. Step 5: Solve for x
    x = 22,148,316,097.11/181,321.63
  6. Step 6: Final answer
    x = 122,149.33

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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.