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Finding the Fourth Proportional to 375,364.40, 517,997.03 and 214,215.30

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Solution

The fourth proportional to 375,364.40, 517,997.03 and 214,215.30 is: 295,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,364.40 : 517,997.03 = 214,215.30 : x
  2. Step 2: Convert to fraction form
    375,364.40/517,997.03 = 214,215.30/x
  3. Step 3: Cross multiply
    375,364.40x = 517,997.03 × 214,215.30
  4. Step 4: Simplify right side
    375,364.40x = 110,962,888,109.48
  5. Step 5: Solve for x
    x = 110,962,888,109.48/375,364.40
  6. Step 6: Final answer
    x = 295,613.78

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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.