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Finding the Fourth Proportional to 341,081.66, 511,403.76 and 141,539.78

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Solution

The fourth proportional to 341,081.66, 511,403.76 and 141,539.78 is: 212,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,081.66 : 511,403.76 = 141,539.78 : x
  2. Step 2: Convert to fraction form
    341,081.66/511,403.76 = 141,539.78/x
  3. Step 3: Cross multiply
    341,081.66x = 511,403.76 × 141,539.78
  4. Step 4: Simplify right side
    341,081.66x = 72,383,973,124.55
  5. Step 5: Solve for x
    x = 72,383,973,124.55/341,081.66
  6. Step 6: Final answer
    x = 212,218.90

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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.