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Finding the Fourth Proportional to 183,788.60, 275,682.90 and 72,980.60

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Solution

The fourth proportional to 183,788.60, 275,682.90 and 72,980.60 is: 109,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,788.60 : 275,682.90 = 72,980.60 : x
  2. Step 2: Convert to fraction form
    183,788.60/275,682.90 = 72,980.60/x
  3. Step 3: Cross multiply
    183,788.60x = 275,682.90 × 72,980.60
  4. Step 4: Simplify right side
    183,788.60x = 20,119,503,451.74
  5. Step 5: Solve for x
    x = 20,119,503,451.74/183,788.60
  6. Step 6: Final answer
    x = 109,470.90

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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.