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Finding the Fourth Proportional to 359,395.45, 539,157.73 and 122,682.79

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Solution

The fourth proportional to 359,395.45, 539,157.73 and 122,682.79 is: 184,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,395.45 : 539,157.73 = 122,682.79 : x
  2. Step 2: Convert to fraction form
    359,395.45/539,157.73 = 122,682.79/x
  3. Step 3: Cross multiply
    359,395.45x = 539,157.73 × 122,682.79
  4. Step 4: Simplify right side
    359,395.45x = 66,145,371,870.68
  5. Step 5: Solve for x
    x = 66,145,371,870.68/359,395.45
  6. Step 6: Final answer
    x = 184,046.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.