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Finding the Fourth Proportional to 201,845.40, 302,768.10 and 154,606.20

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Solution

The fourth proportional to 201,845.40, 302,768.10 and 154,606.20 is: 231,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,845.40 : 302,768.10 = 154,606.20 : x
  2. Step 2: Convert to fraction form
    201,845.40/302,768.10 = 154,606.20/x
  3. Step 3: Cross multiply
    201,845.40x = 302,768.10 × 154,606.20
  4. Step 4: Simplify right side
    201,845.40x = 46,809,825,422.22
  5. Step 5: Solve for x
    x = 46,809,825,422.22/201,845.40
  6. Step 6: Final answer
    x = 231,909.30

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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.