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Finding the Fourth Proportional to 221,216.34, 305,304.47 and 125,737.39

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Solution

The fourth proportional to 221,216.34, 305,304.47 and 125,737.39 is: 173,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,216.34 : 305,304.47 = 125,737.39 : x
  2. Step 2: Convert to fraction form
    221,216.34/305,304.47 = 125,737.39/x
  3. Step 3: Cross multiply
    221,216.34x = 305,304.47 × 125,737.39
  4. Step 4: Simplify right side
    221,216.34x = 38,388,187,213.13
  5. Step 5: Solve for x
    x = 38,388,187,213.13/221,216.34
  6. Step 6: Final answer
    x = 173,532.33

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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.