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Finding the Fourth Proportional to 256,592, 384,887.04 and 69,603.20

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Solution

The fourth proportional to 256,592, 384,887.04 and 69,603.20 is: 104,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,592 : 384,887.04 = 69,603.20 : x
  2. Step 2: Convert to fraction form
    256,592/384,887.04 = 69,603.20/x
  3. Step 3: Cross multiply
    256,592x = 384,887.04 × 69,603.20
  4. Step 4: Simplify right side
    256,592x = 26,789,369,622.53
  5. Step 5: Solve for x
    x = 26,789,369,622.53/256,592
  6. Step 6: Final answer
    x = 104,404.54

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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.