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Finding the Fourth Proportional to 263,201, 394,801.56 and 73,689.28

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Solution

The fourth proportional to 263,201, 394,801.56 and 73,689.28 is: 110,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,201 : 394,801.56 = 73,689.28 : x
  2. Step 2: Convert to fraction form
    263,201/394,801.56 = 73,689.28/x
  3. Step 3: Cross multiply
    263,201x = 394,801.56 × 73,689.28
  4. Step 4: Simplify right side
    263,201x = 29,092,642,699.28
  5. Step 5: Solve for x
    x = 29,092,642,699.28/263,201
  6. Step 6: Final answer
    x = 110,533.94

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1.5x scale

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.