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Finding the Fourth Proportional to 279,758.40, 386,068.32 and 166,585.92

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Solution

The fourth proportional to 279,758.40, 386,068.32 and 166,585.92 is: 229,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,758.40 : 386,068.32 = 166,585.92 : x
  2. Step 2: Convert to fraction form
    279,758.40/386,068.32 = 166,585.92/x
  3. Step 3: Cross multiply
    279,758.40x = 386,068.32 × 166,585.92
  4. Step 4: Simplify right side
    279,758.40x = 64,313,546,270.05
  5. Step 5: Solve for x
    x = 64,313,546,270.05/279,758.40
  6. Step 6: Final answer
    x = 229,889.60

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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.