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Finding the Fourth Proportional to 432,090.80, 648,049.80 and 207,450.80

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Solution

The fourth proportional to 432,090.80, 648,049.80 and 207,450.80 is: 311,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,090.80 : 648,049.80 = 207,450.80 : x
  2. Step 2: Convert to fraction form
    432,090.80/648,049.80 = 207,450.80/x
  3. Step 3: Cross multiply
    432,090.80x = 648,049.80 × 207,450.80
  4. Step 4: Simplify right side
    432,090.80x = 134,438,449,449.84
  5. Step 5: Solve for x
    x = 134,438,449,449.84/432,090.80
  6. Step 6: Final answer
    x = 311,134.72

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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.