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Finding the Fourth Proportional to 290,001.28, 434,861.28 and 170,097.41

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Solution

The fourth proportional to 290,001.28, 434,861.28 and 170,097.41 is: 255,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,001.28 : 434,861.28 = 170,097.41 : x
  2. Step 2: Convert to fraction form
    290,001.28/434,861.28 = 170,097.41/x
  3. Step 3: Cross multiply
    290,001.28x = 434,861.28 × 170,097.41
  4. Step 4: Simplify right side
    290,001.28x = 73,968,778,618.73
  5. Step 5: Solve for x
    x = 73,968,778,618.73/290,001.28
  6. Step 6: Final answer
    x = 255,063.63

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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.