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Finding the Fourth Proportional to 255,591.88, 383,387.91 and 68,603.38

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Solution

The fourth proportional to 255,591.88, 383,387.91 and 68,603.38 is: 102,905.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,591.88 : 383,387.91 = 68,603.38 : x
  2. Step 2: Convert to fraction form
    255,591.88/383,387.91 = 68,603.38/x
  3. Step 3: Cross multiply
    255,591.88x = 383,387.91 × 68,603.38
  4. Step 4: Simplify right side
    255,591.88x = 26,301,706,477.14
  5. Step 5: Solve for x
    x = 26,301,706,477.14/255,591.88
  6. Step 6: Final answer
    x = 102,905.09

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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.