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Finding the Fourth Proportional to 547,271.57, 755,203.03 and 305,569.44

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Solution

The fourth proportional to 547,271.57, 755,203.03 and 305,569.44 is: 421,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,271.57 : 755,203.03 = 305,569.44 : x
  2. Step 2: Convert to fraction form
    547,271.57/755,203.03 = 305,569.44/x
  3. Step 3: Cross multiply
    547,271.57x = 755,203.03 × 305,569.44
  4. Step 4: Simplify right side
    547,271.57x = 230,766,966,199.48
  5. Step 5: Solve for x
    x = 230,766,966,199.48/547,271.57
  6. Step 6: Final answer
    x = 421,668.11

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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.