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Finding the Fourth Proportional to 324,038.40, 446,993.28 and 189,876.48

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Solution

The fourth proportional to 324,038.40, 446,993.28 and 189,876.48 is: 261,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,038.40 : 446,993.28 = 189,876.48 : x
  2. Step 2: Convert to fraction form
    324,038.40/446,993.28 = 189,876.48/x
  3. Step 3: Cross multiply
    324,038.40x = 446,993.28 × 189,876.48
  4. Step 4: Simplify right side
    324,038.40x = 84,873,510,590.05
  5. Step 5: Solve for x
    x = 84,873,510,590.05/324,038.40
  6. Step 6: Final answer
    x = 261,924.24

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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.