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Finding the Fourth Proportional to 303,546.90, 455,241.00 and 90,257.37

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Solution

The fourth proportional to 303,546.90, 455,241.00 and 90,257.37 is: 135,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,546.90 : 455,241.00 = 90,257.37 : x
  2. Step 2: Convert to fraction form
    303,546.90/455,241.00 = 90,257.37/x
  3. Step 3: Cross multiply
    303,546.90x = 455,241.00 × 90,257.37
  4. Step 4: Simplify right side
    303,546.90x = 41,088,852,648.68
  5. Step 5: Solve for x
    x = 41,088,852,648.68/303,546.90
  6. Step 6: Final answer
    x = 135,362.45

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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.