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Finding the Fourth Proportional to 363,598.62, 545,435.16 and 139,147.80

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Solution

The fourth proportional to 363,598.62, 545,435.16 and 139,147.80 is: 208,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,598.62 : 545,435.16 = 139,147.80 : x
  2. Step 2: Convert to fraction form
    363,598.62/545,435.16 = 139,147.80/x
  3. Step 3: Cross multiply
    363,598.62x = 545,435.16 × 139,147.80
  4. Step 4: Simplify right side
    363,598.62x = 75,896,102,556.65
  5. Step 5: Solve for x
    x = 75,896,102,556.65/363,598.62
  6. Step 6: Final answer
    x = 208,735.95

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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.