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Finding the Fourth Proportional to 248,685.99, 372,772 and 115,457.59

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Solution

The fourth proportional to 248,685.99, 372,772 and 115,457.59 is: 173,067.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,685.99 : 372,772 = 115,457.59 : x
  2. Step 2: Convert to fraction form
    248,685.99/372,772 = 115,457.59/x
  3. Step 3: Cross multiply
    248,685.99x = 372,772 × 115,457.59
  4. Step 4: Simplify right side
    248,685.99x = 43,039,356,739.48
  5. Step 5: Solve for x
    x = 43,039,356,739.48/248,685.99
  6. Step 6: Final answer
    x = 173,067.07

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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.