Home / 209,011.22-288,436.06-122,973.46

Finding the Fourth Proportional to 209,011.22, 288,436.06 and 122,973.46

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Solution

The fourth proportional to 209,011.22, 288,436.06 and 122,973.46 is: 169,703.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,011.22 : 288,436.06 = 122,973.46 : x
  2. Step 2: Convert to fraction form
    209,011.22/288,436.06 = 122,973.46/x
  3. Step 3: Cross multiply
    209,011.22x = 288,436.06 × 122,973.46
  4. Step 4: Simplify right side
    209,011.22x = 35,469,980,286.97
  5. Step 5: Solve for x
    x = 35,469,980,286.97/209,011.22
  6. Step 6: Final answer
    x = 169,703.71

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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.