Home / 221,336.17-305,444.88-120,736.33

Finding the Fourth Proportional to 221,336.17, 305,444.88 and 120,736.33

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Solution

The fourth proportional to 221,336.17, 305,444.88 and 120,736.33 is: 166,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336.17 : 305,444.88 = 120,736.33 : x
  2. Step 2: Convert to fraction form
    221,336.17/305,444.88 = 120,736.33/x
  3. Step 3: Cross multiply
    221,336.17x = 305,444.88 × 120,736.33
  4. Step 4: Simplify right side
    221,336.17x = 36,878,293,828.49
  5. Step 5: Solve for x
    x = 36,878,293,828.49/221,336.17
  6. Step 6: Final answer
    x = 166,616.66

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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.