Home / 309,452.24-464,210.68-131,978

Finding the Fourth Proportional to 309,452.24, 464,210.68 and 131,978

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Solution

The fourth proportional to 309,452.24, 464,210.68 and 131,978 is: 197,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,452.24 : 464,210.68 = 131,978 : x
  2. Step 2: Convert to fraction form
    309,452.24/464,210.68 = 131,978/x
  3. Step 3: Cross multiply
    309,452.24x = 464,210.68 × 131,978
  4. Step 4: Simplify right side
    309,452.24x = 61,265,597,125.04
  5. Step 5: Solve for x
    x = 61,265,597,125.04/309,452.24
  6. Step 6: Final answer
    x = 197,980.78

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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.