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Finding the Fourth Proportional to 230,190.60, 345,285.90 and 63,978.60

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Solution

The fourth proportional to 230,190.60, 345,285.90 and 63,978.60 is: 95,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,190.60 : 345,285.90 = 63,978.60 : x
  2. Step 2: Convert to fraction form
    230,190.60/345,285.90 = 63,978.60/x
  3. Step 3: Cross multiply
    230,190.60x = 345,285.90 × 63,978.60
  4. Step 4: Simplify right side
    230,190.60x = 22,090,908,481.74
  5. Step 5: Solve for x
    x = 22,090,908,481.74/230,190.60
  6. Step 6: Final answer
    x = 95,967.90

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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.