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Finding the Fourth Proportional to 203,262.48, 280,548.81 and 135,282.33

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Solution

The fourth proportional to 203,262.48, 280,548.81 and 135,282.33 is: 186,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,262.48 : 280,548.81 = 135,282.33 : x
  2. Step 2: Convert to fraction form
    203,262.48/280,548.81 = 135,282.33/x
  3. Step 3: Cross multiply
    203,262.48x = 280,548.81 × 135,282.33
  4. Step 4: Simplify right side
    203,262.48x = 37,953,296,695.53
  5. Step 5: Solve for x
    x = 37,953,296,695.53/203,262.48
  6. Step 6: Final answer
    x = 186,720.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.