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Finding the Fourth Proportional to 382,055.40, 527,205.60 and 220,920.88

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Solution

The fourth proportional to 382,055.40, 527,205.60 and 220,920.88 is: 304,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,055.40 : 527,205.60 = 220,920.88 : x
  2. Step 2: Convert to fraction form
    382,055.40/527,205.60 = 220,920.88/x
  3. Step 3: Cross multiply
    382,055.40x = 527,205.60 × 220,920.88
  4. Step 4: Simplify right side
    382,055.40x = 116,470,725,092.93
  5. Step 5: Solve for x
    x = 116,470,725,092.93/382,055.40
  6. Step 6: Final answer
    x = 304,852.97

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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.