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Finding the Fourth Proportional to 375,776.64, 518,549.79 and 222,829.56

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Solution

The fourth proportional to 375,776.64, 518,549.79 and 222,829.56 is: 307,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,776.64 : 518,549.79 = 222,829.56 : x
  2. Step 2: Convert to fraction form
    375,776.64/518,549.79 = 222,829.56/x
  3. Step 3: Cross multiply
    375,776.64x = 518,549.79 × 222,829.56
  4. Step 4: Simplify right side
    375,776.64x = 115,548,221,543.79
  5. Step 5: Solve for x
    x = 115,548,221,543.79/375,776.64
  6. Step 6: Final answer
    x = 307,491.76

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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.