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Finding the Fourth Proportional to 348,479.01, 480,723.93 and 227,691

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Solution

The fourth proportional to 348,479.01, 480,723.93 and 227,691 is: 314,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,479.01 : 480,723.93 = 227,691 : x
  2. Step 2: Convert to fraction form
    348,479.01/480,723.93 = 227,691/x
  3. Step 3: Cross multiply
    348,479.01x = 480,723.93 × 227,691
  4. Step 4: Simplify right side
    348,479.01x = 109,456,512,345.63
  5. Step 5: Solve for x
    x = 109,456,512,345.63/348,479.01
  6. Step 6: Final answer
    x = 314,097.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.