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Finding the Fourth Proportional to 432,217.80, 648,132.30 and 165,889.80

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Solution

The fourth proportional to 432,217.80, 648,132.30 and 165,889.80 is: 248,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,217.80 : 648,132.30 = 165,889.80 : x
  2. Step 2: Convert to fraction form
    432,217.80/648,132.30 = 165,889.80/x
  3. Step 3: Cross multiply
    432,217.80x = 648,132.30 × 165,889.80
  4. Step 4: Simplify right side
    432,217.80x = 107,518,537,620.54
  5. Step 5: Solve for x
    x = 107,518,537,620.54/432,217.80
  6. Step 6: Final answer
    x = 248,760.09

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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.