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Finding the Fourth Proportional to 486,481.65, 729,477.48 and 162,154.87

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Solution

The fourth proportional to 486,481.65, 729,477.48 and 162,154.87 is: 243,150.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,481.65 : 729,477.48 = 162,154.87 : x
  2. Step 2: Convert to fraction form
    486,481.65/729,477.48 = 162,154.87/x
  3. Step 3: Cross multiply
    486,481.65x = 729,477.48 × 162,154.87
  4. Step 4: Simplify right side
    486,481.65x = 118,288,325,937.33
  5. Step 5: Solve for x
    x = 118,288,325,937.33/486,481.65
  6. Step 6: Final answer
    x = 243,150.64

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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.