Home / 219,517.39-302,940.51-122,718.72

Finding the Fourth Proportional to 219,517.39, 302,940.51 and 122,718.72

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Solution

The fourth proportional to 219,517.39, 302,940.51 and 122,718.72 is: 169,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,517.39 : 302,940.51 = 122,718.72 : x
  2. Step 2: Convert to fraction form
    219,517.39/302,940.51 = 122,718.72/x
  3. Step 3: Cross multiply
    219,517.39x = 302,940.51 × 122,718.72
  4. Step 4: Simplify right side
    219,517.39x = 37,176,471,447.16
  5. Step 5: Solve for x
    x = 37,176,471,447.16/219,517.39
  6. Step 6: Final answer
    x = 169,355.47

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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.