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Finding the Fourth Proportional to 195,376.80, 293,065.20 and 155,287.20

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Solution

The fourth proportional to 195,376.80, 293,065.20 and 155,287.20 is: 232,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,376.80 : 293,065.20 = 155,287.20 : x
  2. Step 2: Convert to fraction form
    195,376.80/293,065.20 = 155,287.20/x
  3. Step 3: Cross multiply
    195,376.80x = 293,065.20 × 155,287.20
  4. Step 4: Simplify right side
    195,376.80x = 45,509,274,325.44
  5. Step 5: Solve for x
    x = 45,509,274,325.44/195,376.80
  6. Step 6: Final answer
    x = 232,930.80

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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.