Home / 209,084.72-288,340.20-161,262.32

Finding the Fourth Proportional to 209,084.72, 288,340.20 and 161,262.32

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Solution

The fourth proportional to 209,084.72, 288,340.20 and 161,262.32 is: 222,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,084.72 : 288,340.20 = 161,262.32 : x
  2. Step 2: Convert to fraction form
    209,084.72/288,340.20 = 161,262.32/x
  3. Step 3: Cross multiply
    209,084.72x = 288,340.20 × 161,262.32
  4. Step 4: Simplify right side
    209,084.72x = 46,498,409,601.26
  5. Step 5: Solve for x
    x = 46,498,409,601.26/209,084.72
  6. Step 6: Final answer
    x = 222,390.28

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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.