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Finding the Fourth Proportional to 221,551.68, 305,737.44 and 126,056.32

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Solution

The fourth proportional to 221,551.68, 305,737.44 and 126,056.32 is: 173,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,551.68 : 305,737.44 = 126,056.32 : x
  2. Step 2: Convert to fraction form
    221,551.68/305,737.44 = 126,056.32/x
  3. Step 3: Cross multiply
    221,551.68x = 305,737.44 × 126,056.32
  4. Step 4: Simplify right side
    221,551.68x = 38,540,136,572.62
  5. Step 5: Solve for x
    x = 38,540,136,572.62/221,551.68
  6. Step 6: Final answer
    x = 173,955.51

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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.