Home / 291,299.04-436,948.36-80,936.88

Finding the Fourth Proportional to 291,299.04, 436,948.36 and 80,936.88

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Solution

The fourth proportional to 291,299.04, 436,948.36 and 80,936.88 is: 121,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,299.04 : 436,948.36 = 80,936.88 : x
  2. Step 2: Convert to fraction form
    291,299.04/436,948.36 = 80,936.88/x
  3. Step 3: Cross multiply
    291,299.04x = 436,948.36 × 80,936.88
  4. Step 4: Simplify right side
    291,299.04x = 35,365,236,979.52
  5. Step 5: Solve for x
    x = 35,365,236,979.52/291,299.04
  6. Step 6: Final answer
    x = 121,405.26

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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.