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Finding the Fourth Proportional to 255,968.88, 353,246.76 and 142,813.68

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Solution

The fourth proportional to 255,968.88, 353,246.76 and 142,813.68 is: 197,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,968.88 : 353,246.76 = 142,813.68 : x
  2. Step 2: Convert to fraction form
    255,968.88/353,246.76 = 142,813.68/x
  3. Step 3: Cross multiply
    255,968.88x = 353,246.76 × 142,813.68
  4. Step 4: Simplify right side
    255,968.88x = 50,448,469,743.68
  5. Step 5: Solve for x
    x = 50,448,469,743.68/255,968.88
  6. Step 6: Final answer
    x = 197,088.29

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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.