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Finding the Fourth Proportional to 201,654.40, 302,481.60 and 154,415.20

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Solution

The fourth proportional to 201,654.40, 302,481.60 and 154,415.20 is: 231,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,654.40 : 302,481.60 = 154,415.20 : x
  2. Step 2: Convert to fraction form
    201,654.40/302,481.60 = 154,415.20/x
  3. Step 3: Cross multiply
    201,654.40x = 302,481.60 × 154,415.20
  4. Step 4: Simplify right side
    201,654.40x = 46,707,756,760.32
  5. Step 5: Solve for x
    x = 46,707,756,760.32/201,654.40
  6. Step 6: Final answer
    x = 231,622.80

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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.