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Finding the Fourth Proportional to 248,304.78, 342,668.37 and 140,879.34

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Solution

The fourth proportional to 248,304.78, 342,668.37 and 140,879.34 is: 194,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,304.78 : 342,668.37 = 140,879.34 : x
  2. Step 2: Convert to fraction form
    248,304.78/342,668.37 = 140,879.34/x
  3. Step 3: Cross multiply
    248,304.78x = 342,668.37 × 140,879.34
  4. Step 4: Simplify right side
    248,304.78x = 48,274,893,804.48
  5. Step 5: Solve for x
    x = 48,274,893,804.48/248,304.78
  6. Step 6: Final answer
    x = 194,417.90

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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.