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Finding the Fourth Proportional to 279,223.52, 418,676 and 190,584.32

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Solution

The fourth proportional to 279,223.52, 418,676 and 190,584.32 is: 285,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,223.52 : 418,676 = 190,584.32 : x
  2. Step 2: Convert to fraction form
    279,223.52/418,676 = 190,584.32/x
  3. Step 3: Cross multiply
    279,223.52x = 418,676 × 190,584.32
  4. Step 4: Simplify right side
    279,223.52x = 79,793,080,760.32
  5. Step 5: Solve for x
    x = 79,793,080,760.32/279,223.52
  6. Step 6: Final answer
    x = 285,767.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.