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Finding the Fourth Proportional to 305,566.75, 458,362.41 and 145,560.43

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Solution

The fourth proportional to 305,566.75, 458,362.41 and 145,560.43 is: 218,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,566.75 : 458,362.41 = 145,560.43 : x
  2. Step 2: Convert to fraction form
    305,566.75/458,362.41 = 145,560.43/x
  3. Step 3: Cross multiply
    305,566.75x = 458,362.41 × 145,560.43
  4. Step 4: Simplify right side
    305,566.75x = 66,719,429,495.44
  5. Step 5: Solve for x
    x = 66,719,429,495.44/305,566.75
  6. Step 6: Final answer
    x = 218,346.50

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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.