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Finding the Fourth Proportional to 375,774.36, 518,566.71 and 203,691.66

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Solution

The fourth proportional to 375,774.36, 518,566.71 and 203,691.66 is: 281,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,774.36 : 518,566.71 = 203,691.66 : x
  2. Step 2: Convert to fraction form
    375,774.36/518,566.71 = 203,691.66/x
  3. Step 3: Cross multiply
    375,774.36x = 518,566.71 × 203,691.66
  4. Step 4: Simplify right side
    375,774.36x = 105,627,713,980.64
  5. Step 5: Solve for x
    x = 105,627,713,980.64/375,774.36
  6. Step 6: Final answer
    x = 281,093.46

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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.