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Finding the Fourth Proportional to 255,984.36, 383,932.80 and 68,952.12

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Solution

The fourth proportional to 255,984.36, 383,932.80 and 68,952.12 is: 103,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,984.36 : 383,932.80 = 68,952.12 : x
  2. Step 2: Convert to fraction form
    255,984.36/383,932.80 = 68,952.12/x
  3. Step 3: Cross multiply
    255,984.36x = 383,932.80 × 68,952.12
  4. Step 4: Simplify right side
    255,984.36x = 26,472,980,497.54
  5. Step 5: Solve for x
    x = 26,472,980,497.54/255,984.36
  6. Step 6: Final answer
    x = 103,416.40

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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.