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Finding the Fourth Proportional to 303,350.40, 455,900.40 and 264,859.20

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Solution

The fourth proportional to 303,350.40, 455,900.40 and 264,859.20 is: 398,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,350.40 : 455,900.40 = 264,859.20 : x
  2. Step 2: Convert to fraction form
    303,350.40/455,900.40 = 264,859.20/x
  3. Step 3: Cross multiply
    303,350.40x = 455,900.40 × 264,859.20
  4. Step 4: Simplify right side
    303,350.40x = 120,749,415,223.68
  5. Step 5: Solve for x
    x = 120,749,415,223.68/303,350.40
  6. Step 6: Final answer
    x = 398,052.60

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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.