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Finding the Fourth Proportional to 480,979.32, 720,911.32 and 181,268

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Solution

The fourth proportional to 480,979.32, 720,911.32 and 181,268 is: 271,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,979.32 : 720,911.32 = 181,268 : x
  2. Step 2: Convert to fraction form
    480,979.32/720,911.32 = 181,268/x
  3. Step 3: Cross multiply
    480,979.32x = 720,911.32 × 181,268
  4. Step 4: Simplify right side
    480,979.32x = 130,678,153,153.76
  5. Step 5: Solve for x
    x = 130,678,153,153.76/480,979.32
  6. Step 6: Final answer
    x = 271,691.83

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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.