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Finding the Fourth Proportional to 195,645.20, 293,273.40 and 90,280.40

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Solution

The fourth proportional to 195,645.20, 293,273.40 and 90,280.40 is: 135,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,645.20 : 293,273.40 = 90,280.40 : x
  2. Step 2: Convert to fraction form
    195,645.20/293,273.40 = 90,280.40/x
  3. Step 3: Cross multiply
    195,645.20x = 293,273.40 × 90,280.40
  4. Step 4: Simplify right side
    195,645.20x = 26,476,839,861.36
  5. Step 5: Solve for x
    x = 26,476,839,861.36/195,645.20
  6. Step 6: Final answer
    x = 135,330.89

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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.