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Finding the Fourth Proportional to 303,392.66, 418,525.52 and 188,627.78

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Solution

The fourth proportional to 303,392.66, 418,525.52 and 188,627.78 is: 260,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,392.66 : 418,525.52 = 188,627.78 : x
  2. Step 2: Convert to fraction form
    303,392.66/418,525.52 = 188,627.78/x
  3. Step 3: Cross multiply
    303,392.66x = 418,525.52 × 188,627.78
  4. Step 4: Simplify right side
    303,392.66x = 78,945,539,710.95
  5. Step 5: Solve for x
    x = 78,945,539,710.95/303,392.66
  6. Step 6: Final answer
    x = 260,209.13

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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.