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Finding the Fourth Proportional to 305,748.30, 458,600.85 and 106,020.30

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Solution

The fourth proportional to 305,748.30, 458,600.85 and 106,020.30 is: 159,022.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,748.30 : 458,600.85 = 106,020.30 : x
  2. Step 2: Convert to fraction form
    305,748.30/458,600.85 = 106,020.30/x
  3. Step 3: Cross multiply
    305,748.30x = 458,600.85 × 106,020.30
  4. Step 4: Simplify right side
    305,748.30x = 48,620,999,697.26
  5. Step 5: Solve for x
    x = 48,620,999,697.26/305,748.30
  6. Step 6: Final answer
    x = 159,022.96

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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.