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Finding the Fourth Proportional to 201,443.20, 301,419.40 and 121,527.49

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Solution

The fourth proportional to 201,443.20, 301,419.40 and 121,527.49 is: 181,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,443.20 : 301,419.40 = 121,527.49 : x
  2. Step 2: Convert to fraction form
    201,443.20/301,419.40 = 121,527.49/x
  3. Step 3: Cross multiply
    201,443.20x = 301,419.40 × 121,527.49
  4. Step 4: Simplify right side
    201,443.20x = 36,630,743,196.76
  5. Step 5: Solve for x
    x = 36,630,743,196.76/201,443.20
  6. Step 6: Final answer
    x = 181,841.54

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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.