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Finding the Fourth Proportional to 262,776, 394,215.84 and 134,368.32

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Solution

The fourth proportional to 262,776, 394,215.84 and 134,368.32 is: 201,578.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,776 : 394,215.84 = 134,368.32 : x
  2. Step 2: Convert to fraction form
    262,776/394,215.84 = 134,368.32/x
  3. Step 3: Cross multiply
    262,776x = 394,215.84 × 134,368.32
  4. Step 4: Simplify right side
    262,776x = 52,970,120,138.19
  5. Step 5: Solve for x
    x = 52,970,120,138.19/262,776
  6. Step 6: Final answer
    x = 201,578.99

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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.