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Finding the Fourth Proportional to 324,808.86, 487,355.72 and 154,153.83

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Solution

The fourth proportional to 324,808.86, 487,355.72 and 154,153.83 is: 231,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.86 : 487,355.72 = 154,153.83 : x
  2. Step 2: Convert to fraction form
    324,808.86/487,355.72 = 154,153.83/x
  3. Step 3: Cross multiply
    324,808.86x = 487,355.72 × 154,153.83
  4. Step 4: Simplify right side
    324,808.86x = 75,127,750,039.64
  5. Step 5: Solve for x
    x = 75,127,750,039.64/324,808.86
  6. Step 6: Final answer
    x = 231,298.34

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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.