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Finding the Fourth Proportional to 348,079.72, 480,331.74 and 197,167

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Solution

The fourth proportional to 348,079.72, 480,331.74 and 197,167 is: 272,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,079.72 : 480,331.74 = 197,167 : x
  2. Step 2: Convert to fraction form
    348,079.72/480,331.74 = 197,167/x
  3. Step 3: Cross multiply
    348,079.72x = 480,331.74 × 197,167
  4. Step 4: Simplify right side
    348,079.72x = 94,705,568,180.58
  5. Step 5: Solve for x
    x = 94,705,568,180.58/348,079.72
  6. Step 6: Final answer
    x = 272,080.11

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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.