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Finding the Fourth Proportional to 305,984.80, 458,847.60 and 148,261.60

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Solution

The fourth proportional to 305,984.80, 458,847.60 and 148,261.60 is: 222,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,984.80 : 458,847.60 = 148,261.60 : x
  2. Step 2: Convert to fraction form
    305,984.80/458,847.60 = 148,261.60/x
  3. Step 3: Cross multiply
    305,984.80x = 458,847.60 × 148,261.60
  4. Step 4: Simplify right side
    305,984.80x = 68,029,479,332.16
  5. Step 5: Solve for x
    x = 68,029,479,332.16/305,984.80
  6. Step 6: Final answer
    x = 222,329.60

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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.