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Finding the Fourth Proportional to 547,157.50, 755,046.03 and 305,455.39

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Solution

The fourth proportional to 547,157.50, 755,046.03 and 305,455.39 is: 421,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,157.50 : 755,046.03 = 305,455.39 : x
  2. Step 2: Convert to fraction form
    547,157.50/755,046.03 = 305,455.39/x
  3. Step 3: Cross multiply
    547,157.50x = 755,046.03 × 305,455.39
  4. Step 4: Simplify right side
    547,157.50x = 230,632,876,367.67
  5. Step 5: Solve for x
    x = 230,632,876,367.67/547,157.50
  6. Step 6: Final answer
    x = 421,510.95

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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.