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Finding the Fourth Proportional to 290,481.44, 435,748.88 and 113,001.76

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Solution

The fourth proportional to 290,481.44, 435,748.88 and 113,001.76 is: 169,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,481.44 : 435,748.88 = 113,001.76 : x
  2. Step 2: Convert to fraction form
    290,481.44/435,748.88 = 113,001.76/x
  3. Step 3: Cross multiply
    290,481.44x = 435,748.88 × 113,001.76
  4. Step 4: Simplify right side
    290,481.44x = 49,240,390,358.03
  5. Step 5: Solve for x
    x = 49,240,390,358.03/290,481.44
  6. Step 6: Final answer
    x = 169,513.03

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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.