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Finding the Fourth Proportional to 306,052.80, 459,079.20 and 243,067.20

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Solution

The fourth proportional to 306,052.80, 459,079.20 and 243,067.20 is: 364,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,052.80 : 459,079.20 = 243,067.20 : x
  2. Step 2: Convert to fraction form
    306,052.80/459,079.20 = 243,067.20/x
  3. Step 3: Cross multiply
    306,052.80x = 459,079.20 × 243,067.20
  4. Step 4: Simplify right side
    306,052.80x = 111,587,095,722.24
  5. Step 5: Solve for x
    x = 111,587,095,722.24/306,052.80
  6. Step 6: Final answer
    x = 364,600.80

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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.