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Finding the Fourth Proportional to 279,291.95, 385,451.26 and 164,607.53

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Solution

The fourth proportional to 279,291.95, 385,451.26 and 164,607.53 is: 227,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,291.95 : 385,451.26 = 164,607.53 : x
  2. Step 2: Convert to fraction form
    279,291.95/385,451.26 = 164,607.53/x
  3. Step 3: Cross multiply
    279,291.95x = 385,451.26 × 164,607.53
  4. Step 4: Simplify right side
    279,291.95x = 63,448,177,505.21
  5. Step 5: Solve for x
    x = 63,448,177,505.21/279,291.95
  6. Step 6: Final answer
    x = 227,175.10

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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.