Home / 291,519.12-436,291-179,270.40

Finding the Fourth Proportional to 291,519.12, 436,291 and 179,270.40

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Solution

The fourth proportional to 291,519.12, 436,291 and 179,270.40 is: 268,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,519.12 : 436,291 = 179,270.40 : x
  2. Step 2: Convert to fraction form
    291,519.12/436,291 = 179,270.40/x
  3. Step 3: Cross multiply
    291,519.12x = 436,291 × 179,270.40
  4. Step 4: Simplify right side
    291,519.12x = 78,214,062,086.40
  5. Step 5: Solve for x
    x = 78,214,062,086.40/291,519.12
  6. Step 6: Final answer
    x = 268,298.22

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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.