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Finding the Fourth Proportional to 376,005.36, 518,854.84 and 220,940.23

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Solution

The fourth proportional to 376,005.36, 518,854.84 and 220,940.23 is: 304,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,005.36 : 518,854.84 = 220,940.23 : x
  2. Step 2: Convert to fraction form
    376,005.36/518,854.84 = 220,940.23/x
  3. Step 3: Cross multiply
    376,005.36x = 518,854.84 × 220,940.23
  4. Step 4: Simplify right side
    376,005.36x = 114,635,907,255.24
  5. Step 5: Solve for x
    x = 114,635,907,255.24/376,005.36
  6. Step 6: Final answer
    x = 304,878.38

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1.5x scale

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.