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Finding the Fourth Proportional to 359,786.79, 496,502.60 and 198,638.42

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Solution

The fourth proportional to 359,786.79, 496,502.60 and 198,638.42 is: 274,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,786.79 : 496,502.60 = 198,638.42 : x
  2. Step 2: Convert to fraction form
    359,786.79/496,502.60 = 198,638.42/x
  3. Step 3: Cross multiply
    359,786.79x = 496,502.60 × 198,638.42
  4. Step 4: Simplify right side
    359,786.79x = 98,624,488,514.19
  5. Step 5: Solve for x
    x = 98,624,488,514.19/359,786.79
  6. Step 6: Final answer
    x = 274,119.26

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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.