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Finding the Fourth Proportional to 359,521.50, 496,120.35 and 198,345

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Solution

The fourth proportional to 359,521.50, 496,120.35 and 198,345 is: 273,705.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,521.50 : 496,120.35 = 198,345 : x
  2. Step 2: Convert to fraction form
    359,521.50/496,120.35 = 198,345/x
  3. Step 3: Cross multiply
    359,521.50x = 496,120.35 × 198,345
  4. Step 4: Simplify right side
    359,521.50x = 98,402,990,820.75
  5. Step 5: Solve for x
    x = 98,402,990,820.75/359,521.50
  6. Step 6: Final answer
    x = 273,705.44

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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.