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Finding the Fourth Proportional to 208,980.59, 288,481.50 and 141,089.53

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Solution

The fourth proportional to 208,980.59, 288,481.50 and 141,089.53 is: 194,763.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,980.59 : 288,481.50 = 141,089.53 : x
  2. Step 2: Convert to fraction form
    208,980.59/288,481.50 = 141,089.53/x
  3. Step 3: Cross multiply
    208,980.59x = 288,481.50 × 141,089.53
  4. Step 4: Simplify right side
    208,980.59x = 40,701,717,100.84
  5. Step 5: Solve for x
    x = 40,701,717,100.84/208,980.59
  6. Step 6: Final answer
    x = 194,763.15

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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.