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Finding the Fourth Proportional to 216,781.16, 324,750.95 and 159,751.58

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Solution

The fourth proportional to 216,781.16, 324,750.95 and 159,751.58 is: 239,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,781.16 : 324,750.95 = 159,751.58 : x
  2. Step 2: Convert to fraction form
    216,781.16/324,750.95 = 159,751.58/x
  3. Step 3: Cross multiply
    216,781.16x = 324,750.95 × 159,751.58
  4. Step 4: Simplify right side
    216,781.16x = 51,879,477,369.00
  5. Step 5: Solve for x
    x = 51,879,477,369.00/216,781.16
  6. Step 6: Final answer
    x = 239,317.28

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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.