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Finding the Fourth Proportional to 359,252.80, 538,879.20 and 303,956.80

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Solution

The fourth proportional to 359,252.80, 538,879.20 and 303,956.80 is: 455,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,252.80 : 538,879.20 = 303,956.80 : x
  2. Step 2: Convert to fraction form
    359,252.80/538,879.20 = 303,956.80/x
  3. Step 3: Cross multiply
    359,252.80x = 538,879.20 × 303,956.80
  4. Step 4: Simplify right side
    359,252.80x = 163,795,997,218.56
  5. Step 5: Solve for x
    x = 163,795,997,218.56/359,252.80
  6. Step 6: Final answer
    x = 455,935.20

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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.