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Finding the Fourth Proportional to 255,968.88, 353,212.56 and 142,798.92

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Solution

The fourth proportional to 255,968.88, 353,212.56 and 142,798.92 is: 197,048.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,968.88 : 353,212.56 = 142,798.92 : x
  2. Step 2: Convert to fraction form
    255,968.88/353,212.56 = 142,798.92/x
  3. Step 3: Cross multiply
    255,968.88x = 353,212.56 × 142,798.92
  4. Step 4: Simplify right side
    255,968.88x = 50,438,372,098.44
  5. Step 5: Solve for x
    x = 50,438,372,098.44/255,968.88
  6. Step 6: Final answer
    x = 197,048.84

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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.