Home / 309,579.21-464,337.69-84,962.22

Finding the Fourth Proportional to 309,579.21, 464,337.69 and 84,962.22

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Solution

The fourth proportional to 309,579.21, 464,337.69 and 84,962.22 is: 127,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,579.21 : 464,337.69 = 84,962.22 : x
  2. Step 2: Convert to fraction form
    309,579.21/464,337.69 = 84,962.22/x
  3. Step 3: Cross multiply
    309,579.21x = 464,337.69 × 84,962.22
  4. Step 4: Simplify right side
    309,579.21x = 39,451,160,972.07
  5. Step 5: Solve for x
    x = 39,451,160,972.07/309,579.21
  6. Step 6: Final answer
    x = 127,434.79

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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.