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Finding the Fourth Proportional to 359,519.09, 496,047.78 and 219,782.34

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Solution

The fourth proportional to 359,519.09, 496,047.78 and 219,782.34 is: 303,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,519.09 : 496,047.78 = 219,782.34 : x
  2. Step 2: Convert to fraction form
    359,519.09/496,047.78 = 219,782.34/x
  3. Step 3: Cross multiply
    359,519.09x = 496,047.78 × 219,782.34
  4. Step 4: Simplify right side
    359,519.09x = 109,022,541,840.21
  5. Step 5: Solve for x
    x = 109,022,541,840.21/359,519.09
  6. Step 6: Final answer
    x = 303,245.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.