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Finding the Fourth Proportional to 303,346.40, 455,894.40 and 264,855.20

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Solution

The fourth proportional to 303,346.40, 455,894.40 and 264,855.20 is: 398,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,346.40 : 455,894.40 = 264,855.20 : x
  2. Step 2: Convert to fraction form
    303,346.40/455,894.40 = 264,855.20/x
  3. Step 3: Cross multiply
    303,346.40x = 455,894.40 × 264,855.20
  4. Step 4: Simplify right side
    303,346.40x = 120,746,002,490.88
  5. Step 5: Solve for x
    x = 120,746,002,490.88/303,346.40
  6. Step 6: Final answer
    x = 398,046.60

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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.