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Finding the Fourth Proportional to 255,469.41, 383,250.60 and 86,981.11

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Solution

The fourth proportional to 255,469.41, 383,250.60 and 86,981.11 is: 130,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,469.41 : 383,250.60 = 86,981.11 : x
  2. Step 2: Convert to fraction form
    255,469.41/383,250.60 = 86,981.11/x
  3. Step 3: Cross multiply
    255,469.41x = 383,250.60 × 86,981.11
  4. Step 4: Simplify right side
    255,469.41x = 33,335,562,596.17
  5. Step 5: Solve for x
    x = 33,335,562,596.17/255,469.41
  6. Step 6: Final answer
    x = 130,487.49

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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.