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Finding the Fourth Proportional to 279,314.97, 385,387.45 and 164,598.31

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Solution

The fourth proportional to 279,314.97, 385,387.45 and 164,598.31 is: 227,106.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,314.97 : 385,387.45 = 164,598.31 : x
  2. Step 2: Convert to fraction form
    279,314.97/385,387.45 = 164,598.31/x
  3. Step 3: Cross multiply
    279,314.97x = 385,387.45 × 164,598.31
  4. Step 4: Simplify right side
    279,314.97x = 63,434,123,961.31
  5. Step 5: Solve for x
    x = 63,434,123,961.31/279,314.97
  6. Step 6: Final answer
    x = 227,106.07

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1.5x scale

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.