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Finding the Fourth Proportional to 324,864, 448,289.55 and 188,888.30

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Solution

The fourth proportional to 324,864, 448,289.55 and 188,888.30 is: 260,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,864 : 448,289.55 = 188,888.30 : x
  2. Step 2: Convert to fraction form
    324,864/448,289.55 = 188,888.30/x
  3. Step 3: Cross multiply
    324,864x = 448,289.55 × 188,888.30
  4. Step 4: Simplify right side
    324,864x = 84,676,648,765.82
  5. Step 5: Solve for x
    x = 84,676,648,765.82/324,864
  6. Step 6: Final answer
    x = 260,652.61

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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.