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Finding the Fourth Proportional to 359,727.20, 496,410.53 and 198,578.79

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Solution

The fourth proportional to 359,727.20, 496,410.53 and 198,578.79 is: 274,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,727.20 : 496,410.53 = 198,578.79 : x
  2. Step 2: Convert to fraction form
    359,727.20/496,410.53 = 198,578.79/x
  3. Step 3: Cross multiply
    359,727.20x = 496,410.53 × 198,578.79
  4. Step 4: Simplify right side
    359,727.20x = 98,576,601,894.21
  5. Step 5: Solve for x
    x = 98,576,601,894.21/359,727.20
  6. Step 6: Final answer
    x = 274,031.55

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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.