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Finding the Fourth Proportional to 366,771.96, 550,111.14 and 141,978.56

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Solution

The fourth proportional to 366,771.96, 550,111.14 and 141,978.56 is: 212,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,771.96 : 550,111.14 = 141,978.56 : x
  2. Step 2: Convert to fraction form
    366,771.96/550,111.14 = 141,978.56/x
  3. Step 3: Cross multiply
    366,771.96x = 550,111.14 × 141,978.56
  4. Step 4: Simplify right side
    366,771.96x = 78,103,984,746.60
  5. Step 5: Solve for x
    x = 78,103,984,746.60/366,771.96
  6. Step 6: Final answer
    x = 212,949.72

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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.