Home / 209,033.22-288,269.37-161,210.82

Finding the Fourth Proportional to 209,033.22, 288,269.37 and 161,210.82

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Solution

The fourth proportional to 209,033.22, 288,269.37 and 161,210.82 is: 222,319.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,033.22 : 288,269.37 = 161,210.82 : x
  2. Step 2: Convert to fraction form
    209,033.22/288,269.37 = 161,210.82/x
  3. Step 3: Cross multiply
    209,033.22x = 288,269.37 × 161,210.82
  4. Step 4: Simplify right side
    209,033.22x = 46,472,141,518.58
  5. Step 5: Solve for x
    x = 46,472,141,518.58/209,033.22
  6. Step 6: Final answer
    x = 222,319.41

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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.