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Finding the Fourth Proportional to 539,144.78, 808,578.72 and 159,975.83

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Solution

The fourth proportional to 539,144.78, 808,578.72 and 159,975.83 is: 239,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,144.78 : 808,578.72 = 159,975.83 : x
  2. Step 2: Convert to fraction form
    539,144.78/808,578.72 = 159,975.83/x
  3. Step 3: Cross multiply
    539,144.78x = 808,578.72 × 159,975.83
  4. Step 4: Simplify right side
    539,144.78x = 129,353,049,325.53
  5. Step 5: Solve for x
    x = 129,353,049,325.53/539,144.78
  6. Step 6: Final answer
    x = 239,922.66

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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.