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Finding the Fourth Proportional to 359,685.85, 496,366.50 and 198,540.94

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Solution

The fourth proportional to 359,685.85, 496,366.50 and 198,540.94 is: 273,986.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,685.85 : 496,366.50 = 198,540.94 : x
  2. Step 2: Convert to fraction form
    359,685.85/496,366.50 = 198,540.94/x
  3. Step 3: Cross multiply
    359,685.85x = 496,366.50 × 198,540.94
  4. Step 4: Simplify right side
    359,685.85x = 98,549,071,494.51
  5. Step 5: Solve for x
    x = 98,549,071,494.51/359,685.85
  6. Step 6: Final answer
    x = 273,986.51

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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.