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Finding the Fourth Proportional to 375,297.16, 517,910.26 and 203,215.20

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Solution

The fourth proportional to 375,297.16, 517,910.26 and 203,215.20 is: 280,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,297.16 : 517,910.26 = 203,215.20 : x
  2. Step 2: Convert to fraction form
    375,297.16/517,910.26 = 203,215.20/x
  3. Step 3: Cross multiply
    375,297.16x = 517,910.26 × 203,215.20
  4. Step 4: Simplify right side
    375,297.16x = 105,247,234,478.40
  5. Step 5: Solve for x
    x = 105,247,234,478.40/375,297.16
  6. Step 6: Final answer
    x = 280,437.07

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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.