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Finding the Fourth Proportional to 254,980.60, 381,693.30 and 149,486.20

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Solution

The fourth proportional to 254,980.60, 381,693.30 and 149,486.20 is: 223,773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,980.60 : 381,693.30 = 149,486.20 : x
  2. Step 2: Convert to fraction form
    254,980.60/381,693.30 = 149,486.20/x
  3. Step 3: Cross multiply
    254,980.60x = 381,693.30 × 149,486.20
  4. Step 4: Simplify right side
    254,980.60x = 57,057,880,982.46
  5. Step 5: Solve for x
    x = 57,057,880,982.46/254,980.60
  6. Step 6: Final answer
    x = 223,773.42

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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.