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Finding the Fourth Proportional to 255,179.79, 382,825.04 and 77,682.21

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Solution

The fourth proportional to 255,179.79, 382,825.04 and 77,682.21 is: 116,540.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,179.79 : 382,825.04 = 77,682.21 : x
  2. Step 2: Convert to fraction form
    255,179.79/382,825.04 = 77,682.21/x
  3. Step 3: Cross multiply
    255,179.79x = 382,825.04 × 77,682.21
  4. Step 4: Simplify right side
    255,179.79x = 29,738,694,762.13
  5. Step 5: Solve for x
    x = 29,738,694,762.13/255,179.79
  6. Step 6: Final answer
    x = 116,540.16

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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.