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Finding the Fourth Proportional to 255,873.30, 383,809.59 and 68,884.98

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Solution

The fourth proportional to 255,873.30, 383,809.59 and 68,884.98 is: 103,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,873.30 : 383,809.59 = 68,884.98 : x
  2. Step 2: Convert to fraction form
    255,873.30/383,809.59 = 68,884.98/x
  3. Step 3: Cross multiply
    255,873.30x = 383,809.59 × 68,884.98
  4. Step 4: Simplify right side
    255,873.30x = 26,438,715,930.96
  5. Step 5: Solve for x
    x = 26,438,715,930.96/255,873.30
  6. Step 6: Final answer
    x = 103,327.37

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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.