Home / 248,568.72-343,048.68-153,131.28

Finding the Fourth Proportional to 248,568.72, 343,048.68 and 153,131.28

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Solution

The fourth proportional to 248,568.72, 343,048.68 and 153,131.28 is: 211,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,568.72 : 343,048.68 = 153,131.28 : x
  2. Step 2: Convert to fraction form
    248,568.72/343,048.68 = 153,131.28/x
  3. Step 3: Cross multiply
    248,568.72x = 343,048.68 × 153,131.28
  4. Step 4: Simplify right side
    248,568.72x = 52,531,483,470.71
  5. Step 5: Solve for x
    x = 52,531,483,470.71/248,568.72
  6. Step 6: Final answer
    x = 211,335.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.