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Finding the Fourth Proportional to 179,615.70, 269,455.95 and 90,645.30

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Solution

The fourth proportional to 179,615.70, 269,455.95 and 90,645.30 is: 135,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,615.70 : 269,455.95 = 90,645.30 : x
  2. Step 2: Convert to fraction form
    179,615.70/269,455.95 = 90,645.30/x
  3. Step 3: Cross multiply
    179,615.70x = 269,455.95 × 90,645.30
  4. Step 4: Simplify right side
    179,615.70x = 24,424,915,424.54
  5. Step 5: Solve for x
    x = 24,424,915,424.54/179,615.70
  6. Step 6: Final answer
    x = 135,984.30

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1.5x scale

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.