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Finding the Fourth Proportional to 356,939.60, 534,372.60 and 346,571.60

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Solution

The fourth proportional to 356,939.60, 534,372.60 and 346,571.60 is: 518,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,939.60 : 534,372.60 = 346,571.60 : x
  2. Step 2: Convert to fraction form
    356,939.60/534,372.60 = 346,571.60/x
  3. Step 3: Cross multiply
    356,939.60x = 534,372.60 × 346,571.60
  4. Step 4: Simplify right side
    356,939.60x = 185,198,366,978.16
  5. Step 5: Solve for x
    x = 185,198,366,978.16/356,939.60
  6. Step 6: Final answer
    x = 518,850.72

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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.