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Finding the Fourth Proportional to 375,112.76, 517,549.64 and 222,083.78

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Solution

The fourth proportional to 375,112.76, 517,549.64 and 222,083.78 is: 306,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,112.76 : 517,549.64 = 222,083.78 : x
  2. Step 2: Convert to fraction form
    375,112.76/517,549.64 = 222,083.78/x
  3. Step 3: Cross multiply
    375,112.76x = 517,549.64 × 222,083.78
  4. Step 4: Simplify right side
    375,112.76x = 114,939,376,690.67
  5. Step 5: Solve for x
    x = 114,939,376,690.67/375,112.76
  6. Step 6: Final answer
    x = 306,412.87

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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.