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Finding the Fourth Proportional to 608,106.69, 911,900.03 and 208,787.83

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Solution

The fourth proportional to 608,106.69, 911,900.03 and 208,787.83 is: 313,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,106.69 : 911,900.03 = 208,787.83 : x
  2. Step 2: Convert to fraction form
    608,106.69/911,900.03 = 208,787.83/x
  3. Step 3: Cross multiply
    608,106.69x = 911,900.03 × 208,787.83
  4. Step 4: Simplify right side
    608,106.69x = 190,393,625,116.95
  5. Step 5: Solve for x
    x = 190,393,625,116.95/608,106.69
  6. Step 6: Final answer
    x = 313,092.47

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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.