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Finding the Fourth Proportional to 279,625.84, 385,927.49 and 164,917.11

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Solution

The fourth proportional to 279,625.84, 385,927.49 and 164,917.11 is: 227,611.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,625.84 : 385,927.49 = 164,917.11 : x
  2. Step 2: Convert to fraction form
    279,625.84/385,927.49 = 164,917.11/x
  3. Step 3: Cross multiply
    279,625.84x = 385,927.49 × 164,917.11
  4. Step 4: Simplify right side
    279,625.84x = 63,646,046,114.21
  5. Step 5: Solve for x
    x = 63,646,046,114.21/279,625.84
  6. Step 6: Final answer
    x = 227,611.46

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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.