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Finding the Fourth Proportional to 359,813.30, 496,550.10 and 198,678.58

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Solution

The fourth proportional to 359,813.30, 496,550.10 and 198,678.58 is: 274,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,813.30 : 496,550.10 = 198,678.58 : x
  2. Step 2: Convert to fraction form
    359,813.30/496,550.10 = 198,678.58/x
  3. Step 3: Cross multiply
    359,813.30x = 496,550.10 × 198,678.58
  4. Step 4: Simplify right side
    359,813.30x = 98,653,868,766.86
  5. Step 5: Solve for x
    x = 98,653,868,766.86/359,813.30
  6. Step 6: Final answer
    x = 274,180.72

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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.