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Finding the Fourth Proportional to 195,415.20, 293,122.80 and 132,429.60

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Solution

The fourth proportional to 195,415.20, 293,122.80 and 132,429.60 is: 198,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,415.20 : 293,122.80 = 132,429.60 : x
  2. Step 2: Convert to fraction form
    195,415.20/293,122.80 = 132,429.60/x
  3. Step 3: Cross multiply
    195,415.20x = 293,122.80 × 132,429.60
  4. Step 4: Simplify right side
    195,415.20x = 38,818,135,154.88
  5. Step 5: Solve for x
    x = 38,818,135,154.88/195,415.20
  6. Step 6: Final answer
    x = 198,644.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.