Home / 291,962.28-437,921.55-81,616.62

Finding the Fourth Proportional to 291,962.28, 437,921.55 and 81,616.62

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Solution

The fourth proportional to 291,962.28, 437,921.55 and 81,616.62 is: 122,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,962.28 : 437,921.55 = 81,616.62 : x
  2. Step 2: Convert to fraction form
    291,962.28/437,921.55 = 81,616.62/x
  3. Step 3: Cross multiply
    291,962.28x = 437,921.55 × 81,616.62
  4. Step 4: Simplify right side
    291,962.28x = 35,741,676,736.16
  5. Step 5: Solve for x
    x = 35,741,676,736.16/291,962.28
  6. Step 6: Final answer
    x = 122,418.82

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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.