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Finding the Fourth Proportional to 255,319.50, 382,979.25 and 68,326.14

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Solution

The fourth proportional to 255,319.50, 382,979.25 and 68,326.14 is: 102,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,319.50 : 382,979.25 = 68,326.14 : x
  2. Step 2: Convert to fraction form
    255,319.50/382,979.25 = 68,326.14/x
  3. Step 3: Cross multiply
    255,319.50x = 382,979.25 × 68,326.14
  4. Step 4: Simplify right side
    255,319.50x = 26,167,493,852.60
  5. Step 5: Solve for x
    x = 26,167,493,852.60/255,319.50
  6. Step 6: Final answer
    x = 102,489.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.