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Finding the Fourth Proportional to 359,567.86, 496,194.50 and 198,420.80

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Solution

The fourth proportional to 359,567.86, 496,194.50 and 198,420.80 is: 273,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,567.86 : 496,194.50 = 198,420.80 : x
  2. Step 2: Convert to fraction form
    359,567.86/496,194.50 = 198,420.80/x
  3. Step 3: Cross multiply
    359,567.86x = 496,194.50 × 198,420.80
  4. Step 4: Simplify right side
    359,567.86x = 98,455,309,645.60
  5. Step 5: Solve for x
    x = 98,455,309,645.60/359,567.86
  6. Step 6: Final answer
    x = 273,815.66

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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.