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Finding the Fourth Proportional to 377,649.95, 521,167.85 and 205,579.07

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Solution

The fourth proportional to 377,649.95, 521,167.85 and 205,579.07 is: 283,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,649.95 : 521,167.85 = 205,579.07 : x
  2. Step 2: Convert to fraction form
    377,649.95/521,167.85 = 205,579.07/x
  3. Step 3: Cross multiply
    377,649.95x = 521,167.85 × 205,579.07
  4. Step 4: Simplify right side
    377,649.95x = 107,141,198,283.17
  5. Step 5: Solve for x
    x = 107,141,198,283.17/377,649.95
  6. Step 6: Final answer
    x = 283,705.05

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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.