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Finding the Fourth Proportional to 359,684.35, 496,400.81 and 308,865.31

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Solution

The fourth proportional to 359,684.35, 496,400.81 and 308,865.31 is: 426,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,684.35 : 496,400.81 = 308,865.31 : x
  2. Step 2: Convert to fraction form
    359,684.35/496,400.81 = 308,865.31/x
  3. Step 3: Cross multiply
    359,684.35x = 496,400.81 × 308,865.31
  4. Step 4: Simplify right side
    359,684.35x = 153,320,987,279.57
  5. Step 5: Solve for x
    x = 153,320,987,279.57/359,684.35
  6. Step 6: Final answer
    x = 426,265.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.