Home / 258,550.42-388,188.91-132,281.24

Finding the Fourth Proportional to 258,550.42, 388,188.91 and 132,281.24

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Solution

The fourth proportional to 258,550.42, 388,188.91 and 132,281.24 is: 198,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,550.42 : 388,188.91 = 132,281.24 : x
  2. Step 2: Convert to fraction form
    258,550.42/388,188.91 = 132,281.24/x
  3. Step 3: Cross multiply
    258,550.42x = 388,188.91 × 132,281.24
  4. Step 4: Simplify right side
    258,550.42x = 51,350,110,369.05
  5. Step 5: Solve for x
    x = 51,350,110,369.05/258,550.42
  6. Step 6: Final answer
    x = 198,607.72

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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.