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Finding the Fourth Proportional to 408,333, 612,623.70 and 208,793.46

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Solution

The fourth proportional to 408,333, 612,623.70 and 208,793.46 is: 313,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,333 : 612,623.70 = 208,793.46 : x
  2. Step 2: Convert to fraction form
    408,333/612,623.70 = 208,793.46/x
  3. Step 3: Cross multiply
    408,333x = 612,623.70 × 208,793.46
  4. Step 4: Simplify right side
    408,333x = 127,911,822,001.00
  5. Step 5: Solve for x
    x = 127,911,822,001.00/408,333
  6. Step 6: Final answer
    x = 313,253.70

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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.