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Finding the Fourth Proportional to 438,702, 605,409.57 and 237,498

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Solution

The fourth proportional to 438,702, 605,409.57 and 237,498 is: 327,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,702 : 605,409.57 = 237,498 : x
  2. Step 2: Convert to fraction form
    438,702/605,409.57 = 237,498/x
  3. Step 3: Cross multiply
    438,702x = 605,409.57 × 237,498
  4. Step 4: Simplify right side
    438,702x = 143,783,562,055.86
  5. Step 5: Solve for x
    x = 143,783,562,055.86/438,702
  6. Step 6: Final answer
    x = 327,747.68

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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.