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Finding the Fourth Proportional to 359,990.69, 496,777.63 and 198,842.28

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Solution

The fourth proportional to 359,990.69, 496,777.63 and 198,842.28 is: 274,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,990.69 : 496,777.63 = 198,842.28 : x
  2. Step 2: Convert to fraction form
    359,990.69/496,777.63 = 198,842.28/x
  3. Step 3: Cross multiply
    359,990.69x = 496,777.63 × 198,842.28
  4. Step 4: Simplify right side
    359,990.69x = 98,780,396,602.20
  5. Step 5: Solve for x
    x = 98,780,396,602.20/359,990.69
  6. Step 6: Final answer
    x = 274,397.09

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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.