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Finding the Fourth Proportional to 640,296.33, 960,482.06 and 240,940.55

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Solution

The fourth proportional to 640,296.33, 960,482.06 and 240,940.55 is: 361,424.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,296.33 : 960,482.06 = 240,940.55 : x
  2. Step 2: Convert to fraction form
    640,296.33/960,482.06 = 240,940.55/x
  3. Step 3: Cross multiply
    640,296.33x = 960,482.06 × 240,940.55
  4. Step 4: Simplify right side
    640,296.33x = 231,419,069,794.42
  5. Step 5: Solve for x
    x = 231,419,069,794.42/640,296.33
  6. Step 6: Final answer
    x = 361,424.95

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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.