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Finding the Fourth Proportional to 195,620.20, 293,430.30 and 77,230.60

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Solution

The fourth proportional to 195,620.20, 293,430.30 and 77,230.60 is: 115,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,620.20 : 293,430.30 = 77,230.60 : x
  2. Step 2: Convert to fraction form
    195,620.20/293,430.30 = 77,230.60/x
  3. Step 3: Cross multiply
    195,620.20x = 293,430.30 × 77,230.60
  4. Step 4: Simplify right side
    195,620.20x = 22,661,798,127.18
  5. Step 5: Solve for x
    x = 22,661,798,127.18/195,620.20
  6. Step 6: Final answer
    x = 115,845.90

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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.