Home / 221,335.17-305,443.50-120,735.33

Finding the Fourth Proportional to 221,335.17, 305,443.50 and 120,735.33

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Solution

The fourth proportional to 221,335.17, 305,443.50 and 120,735.33 is: 166,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,335.17 : 305,443.50 = 120,735.33 : x
  2. Step 2: Convert to fraction form
    221,335.17/305,443.50 = 120,735.33/x
  3. Step 3: Cross multiply
    221,335.17x = 305,443.50 × 120,735.33
  4. Step 4: Simplify right side
    221,335.17x = 36,877,821,768.86
  5. Step 5: Solve for x
    x = 36,877,821,768.86/221,335.17
  6. Step 6: Final answer
    x = 166,615.28

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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.