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Finding the Fourth Proportional to 450,649.98, 621,891.27 and 271,801.98

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Solution

The fourth proportional to 450,649.98, 621,891.27 and 271,801.98 is: 375,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,649.98 : 621,891.27 = 271,801.98 : x
  2. Step 2: Convert to fraction form
    450,649.98/621,891.27 = 271,801.98/x
  3. Step 3: Cross multiply
    450,649.98x = 621,891.27 × 271,801.98
  4. Step 4: Simplify right side
    450,649.98x = 169,031,278,530.72
  5. Step 5: Solve for x
    x = 169,031,278,530.72/450,649.98
  6. Step 6: Final answer
    x = 375,083.29

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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.