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Finding the Fourth Proportional to 368,809.20, 552,436.20 and 306,601.20

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Solution

The fourth proportional to 368,809.20, 552,436.20 and 306,601.20 is: 459,255.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,809.20 : 552,436.20 = 306,601.20 : x
  2. Step 2: Convert to fraction form
    368,809.20/552,436.20 = 306,601.20/x
  3. Step 3: Cross multiply
    368,809.20x = 552,436.20 × 306,601.20
  4. Step 4: Simplify right side
    368,809.20x = 169,377,601,843.44
  5. Step 5: Solve for x
    x = 169,377,601,843.44/368,809.20
  6. Step 6: Final answer
    x = 459,255.36

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1.5x scale

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.