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Finding the Fourth Proportional to 248,290.92, 371,392.56 and 209,304

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Solution

The fourth proportional to 248,290.92, 371,392.56 and 209,304 is: 313,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,290.92 : 371,392.56 = 209,304 : x
  2. Step 2: Convert to fraction form
    248,290.92/371,392.56 = 209,304/x
  3. Step 3: Cross multiply
    248,290.92x = 371,392.56 × 209,304
  4. Step 4: Simplify right side
    248,290.92x = 77,733,948,378.24
  5. Step 5: Solve for x
    x = 77,733,948,378.24/248,290.92
  6. Step 6: Final answer
    x = 313,076.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.