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Finding the Fourth Proportional to 425,180.32, 636,272.52 and 265,331.44

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Solution

The fourth proportional to 425,180.32, 636,272.52 and 265,331.44 is: 397,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,180.32 : 636,272.52 = 265,331.44 : x
  2. Step 2: Convert to fraction form
    425,180.32/636,272.52 = 265,331.44/x
  3. Step 3: Cross multiply
    425,180.32x = 636,272.52 × 265,331.44
  4. Step 4: Simplify right side
    425,180.32x = 168,823,103,964.03
  5. Step 5: Solve for x
    x = 168,823,103,964.03/425,180.32
  6. Step 6: Final answer
    x = 397,062.37

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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.