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Finding the Fourth Proportional to 375,883.42, 518,742.74 and 206,117.55

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Solution

The fourth proportional to 375,883.42, 518,742.74 and 206,117.55 is: 284,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,883.42 : 518,742.74 = 206,117.55 : x
  2. Step 2: Convert to fraction form
    375,883.42/518,742.74 = 206,117.55/x
  3. Step 3: Cross multiply
    375,883.42x = 518,742.74 × 206,117.55
  4. Step 4: Simplify right side
    375,883.42x = 106,921,982,649.09
  5. Step 5: Solve for x
    x = 106,921,982,649.09/375,883.42
  6. Step 6: Final answer
    x = 284,455.17

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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.