Home / 351,760.40-528,346.69-209,882.56

Finding the Fourth Proportional to 351,760.40, 528,346.69 and 209,882.56

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Solution

The fourth proportional to 351,760.40, 528,346.69 and 209,882.56 is: 315,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,760.40 : 528,346.69 = 209,882.56 : x
  2. Step 2: Convert to fraction form
    351,760.40/528,346.69 = 209,882.56/x
  3. Step 3: Cross multiply
    351,760.40x = 528,346.69 × 209,882.56
  4. Step 4: Simplify right side
    351,760.40x = 110,890,754,019.15
  5. Step 5: Solve for x
    x = 110,890,754,019.15/351,760.40
  6. Step 6: Final answer
    x = 315,245.13

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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.