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Finding the Fourth Proportional to 170,586, 255,879 and 59,778

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Solution

The fourth proportional to 170,586, 255,879 and 59,778 is: 89,667

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,586 : 255,879 = 59,778 : x
  2. Step 2: Convert to fraction form
    170,586/255,879 = 59,778/x
  3. Step 3: Cross multiply
    170,586x = 255,879 × 59,778
  4. Step 4: Simplify right side
    170,586x = 15,295,934,862
  5. Step 5: Solve for x
    x = 15,295,934,862/170,586
  6. Step 6: Final answer
    x = 89,667

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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.