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Finding the Fourth Proportional to 303,765.80, 455,357.10 and 236,260.40

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Solution

The fourth proportional to 303,765.80, 455,357.10 and 236,260.40 is: 354,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,765.80 : 455,357.10 = 236,260.40 : x
  2. Step 2: Convert to fraction form
    303,765.80/455,357.10 = 236,260.40/x
  3. Step 3: Cross multiply
    303,765.80x = 455,357.10 × 236,260.40
  4. Step 4: Simplify right side
    303,765.80x = 107,582,850,588.84
  5. Step 5: Solve for x
    x = 107,582,850,588.84/303,765.80
  6. Step 6: Final answer
    x = 354,163.80

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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.