Home / 219,721.04-303,202.76-122,906.20

Finding the Fourth Proportional to 219,721.04, 303,202.76 and 122,906.20

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Solution

The fourth proportional to 219,721.04, 303,202.76 and 122,906.20 is: 169,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,721.04 : 303,202.76 = 122,906.20 : x
  2. Step 2: Convert to fraction form
    219,721.04/303,202.76 = 122,906.20/x
  3. Step 3: Cross multiply
    219,721.04x = 303,202.76 × 122,906.20
  4. Step 4: Simplify right side
    219,721.04x = 37,265,498,948.43
  5. Step 5: Solve for x
    x = 37,265,498,948.43/219,721.04
  6. Step 6: Final answer
    x = 169,603.69

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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.