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Finding the Fourth Proportional to 438,884.43, 605,609.46 and 245,292.54

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Solution

The fourth proportional to 438,884.43, 605,609.46 and 245,292.54 is: 338,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,884.43 : 605,609.46 = 245,292.54 : x
  2. Step 2: Convert to fraction form
    438,884.43/605,609.46 = 245,292.54/x
  3. Step 3: Cross multiply
    438,884.43x = 605,609.46 × 245,292.54
  4. Step 4: Simplify right side
    438,884.43x = 148,551,480,420.39
  5. Step 5: Solve for x
    x = 148,551,480,420.39/438,884.43
  6. Step 6: Final answer
    x = 338,475.17

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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.