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Finding the Fourth Proportional to 448,552.52, 672,828.78 and 211,919

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Solution

The fourth proportional to 448,552.52, 672,828.78 and 211,919 is: 317,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,552.52 : 672,828.78 = 211,919 : x
  2. Step 2: Convert to fraction form
    448,552.52/672,828.78 = 211,919/x
  3. Step 3: Cross multiply
    448,552.52x = 672,828.78 × 211,919
  4. Step 4: Simplify right side
    448,552.52x = 142,585,202,228.82
  5. Step 5: Solve for x
    x = 142,585,202,228.82/448,552.52
  6. Step 6: Final answer
    x = 317,878.50

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Similar ratio
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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.