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Finding the Fourth Proportional to 195,636.40, 293,114.40 and 90,239.20

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Solution

The fourth proportional to 195,636.40, 293,114.40 and 90,239.20 is: 135,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,636.40 : 293,114.40 = 90,239.20 : x
  2. Step 2: Convert to fraction form
    195,636.40/293,114.40 = 90,239.20/x
  3. Step 3: Cross multiply
    195,636.40x = 293,114.40 × 90,239.20
  4. Step 4: Simplify right side
    195,636.40x = 26,450,408,964.48
  5. Step 5: Solve for x
    x = 26,450,408,964.48/195,636.40
  6. Step 6: Final answer
    x = 135,201.88

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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.