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Finding the Fourth Proportional to 366,881.31, 550,144.20 and 215,119.89

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Solution

The fourth proportional to 366,881.31, 550,144.20 and 215,119.89 is: 322,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,881.31 : 550,144.20 = 215,119.89 : x
  2. Step 2: Convert to fraction form
    366,881.31/550,144.20 = 215,119.89/x
  3. Step 3: Cross multiply
    366,881.31x = 550,144.20 × 215,119.89
  4. Step 4: Simplify right side
    366,881.31x = 118,346,959,788.14
  5. Step 5: Solve for x
    x = 118,346,959,788.14/366,881.31
  6. Step 6: Final answer
    x = 322,575.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.