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Finding the Fourth Proportional to 248,892.48, 343,470.24 and 135,712.80

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Solution

The fourth proportional to 248,892.48, 343,470.24 and 135,712.80 is: 187,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,892.48 : 343,470.24 = 135,712.80 : x
  2. Step 2: Convert to fraction form
    248,892.48/343,470.24 = 135,712.80/x
  3. Step 3: Cross multiply
    248,892.48x = 343,470.24 × 135,712.80
  4. Step 4: Simplify right side
    248,892.48x = 46,613,307,987.07
  5. Step 5: Solve for x
    x = 46,613,307,987.07/248,892.48
  6. Step 6: Final answer
    x = 187,282.91

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1.5x scale

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.