Home / 209,462.54-289,121.79-142,433.42

Finding the Fourth Proportional to 209,462.54, 289,121.79 and 142,433.42

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Solution

The fourth proportional to 209,462.54, 289,121.79 and 142,433.42 is: 196,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,462.54 : 289,121.79 = 142,433.42 : x
  2. Step 2: Convert to fraction form
    209,462.54/289,121.79 = 142,433.42/x
  3. Step 3: Cross multiply
    209,462.54x = 289,121.79 × 142,433.42
  4. Step 4: Simplify right side
    209,462.54x = 41,180,605,346.22
  5. Step 5: Solve for x
    x = 41,180,605,346.22/209,462.54
  6. Step 6: Final answer
    x = 196,601.29

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1.5x scale

Why These Related Problems?

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