Home / 205,412.20-307,772.70-192,970.60

Finding the Fourth Proportional to 205,412.20, 307,772.70 and 192,970.60

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Solution

The fourth proportional to 205,412.20, 307,772.70 and 192,970.60 is: 289,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,412.20 : 307,772.70 = 192,970.60 : x
  2. Step 2: Convert to fraction form
    205,412.20/307,772.70 = 192,970.60/x
  3. Step 3: Cross multiply
    205,412.20x = 307,772.70 × 192,970.60
  4. Step 4: Simplify right side
    205,412.20x = 59,391,082,582.62
  5. Step 5: Solve for x
    x = 59,391,082,582.62/205,412.20
  6. Step 6: Final answer
    x = 289,131.23

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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.