Home / 432,620.10-649,043.55-166,389.30

Finding the Fourth Proportional to 432,620.10, 649,043.55 and 166,389.30

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Solution

The fourth proportional to 432,620.10, 649,043.55 and 166,389.30 is: 249,627.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,620.10 : 649,043.55 = 166,389.30 : x
  2. Step 2: Convert to fraction form
    432,620.10/649,043.55 = 166,389.30/x
  3. Step 3: Cross multiply
    432,620.10x = 649,043.55 × 166,389.30
  4. Step 4: Simplify right side
    432,620.10x = 107,993,901,954.02
  5. Step 5: Solve for x
    x = 107,993,901,954.02/432,620.10
  6. Step 6: Final answer
    x = 249,627.56

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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.