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Finding the Fourth Proportional to 438,660.63, 605,351.81 and 237,456.63

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Solution

The fourth proportional to 438,660.63, 605,351.81 and 237,456.63 is: 327,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,660.63 : 605,351.81 = 237,456.63 : x
  2. Step 2: Convert to fraction form
    438,660.63/605,351.81 = 237,456.63/x
  3. Step 3: Cross multiply
    438,660.63x = 605,351.81 × 237,456.63
  4. Step 4: Simplify right side
    438,660.63x = 143,744,801,360.64
  5. Step 5: Solve for x
    x = 143,744,801,360.64/438,660.63
  6. Step 6: Final answer
    x = 327,690.23

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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.