Home / 291,298.15-436,948.25-80,936.09

Finding the Fourth Proportional to 291,298.15, 436,948.25 and 80,936.09

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Solution

The fourth proportional to 291,298.15, 436,948.25 and 80,936.09 is: 121,404.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,298.15 : 436,948.25 = 80,936.09 : x
  2. Step 2: Convert to fraction form
    291,298.15/436,948.25 = 80,936.09/x
  3. Step 3: Cross multiply
    291,298.15x = 436,948.25 × 80,936.09
  4. Step 4: Simplify right side
    291,298.15x = 35,364,880,935.19
  5. Step 5: Solve for x
    x = 35,364,880,935.19/291,298.15
  6. Step 6: Final answer
    x = 121,404.41

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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.