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Finding the Fourth Proportional to 262,716.84, 394,130.63 and 85,210.04

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Solution

The fourth proportional to 262,716.84, 394,130.63 and 85,210.04 is: 127,833.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,716.84 : 394,130.63 = 85,210.04 : x
  2. Step 2: Convert to fraction form
    262,716.84/394,130.63 = 85,210.04/x
  3. Step 3: Cross multiply
    262,716.84x = 394,130.63 × 85,210.04
  4. Step 4: Simplify right side
    262,716.84x = 33,583,887,945.88
  5. Step 5: Solve for x
    x = 33,583,887,945.88/262,716.84
  6. Step 6: Final answer
    x = 127,833.02

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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.