Home / 309,215.72-463,837.55-84,571.13

Finding the Fourth Proportional to 309,215.72, 463,837.55 and 84,571.13

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Solution

The fourth proportional to 309,215.72, 463,837.55 and 84,571.13 is: 126,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,215.72 : 463,837.55 = 84,571.13 : x
  2. Step 2: Convert to fraction form
    309,215.72/463,837.55 = 84,571.13/x
  3. Step 3: Cross multiply
    309,215.72x = 463,837.55 × 84,571.13
  4. Step 4: Simplify right side
    309,215.72x = 39,227,265,739.93
  5. Step 5: Solve for x
    x = 39,227,265,739.93/309,215.72
  6. Step 6: Final answer
    x = 126,860.52

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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.