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Finding the Fourth Proportional to 439,603.20, 606,663.36 and 248,607.36

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Solution

The fourth proportional to 439,603.20, 606,663.36 and 248,607.36 is: 343,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,603.20 : 606,663.36 = 248,607.36 : x
  2. Step 2: Convert to fraction form
    439,603.20/606,663.36 = 248,607.36/x
  3. Step 3: Cross multiply
    439,603.20x = 606,663.36 × 248,607.36
  4. Step 4: Simplify right side
    439,603.20x = 150,820,976,338.33
  5. Step 5: Solve for x
    x = 150,820,976,338.33/439,603.20
  6. Step 6: Final answer
    x = 343,084.35

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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.