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Finding the Fourth Proportional to 344,794.40, 517,337.40 and 218,531.60

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Solution

The fourth proportional to 344,794.40, 517,337.40 and 218,531.60 is: 327,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,794.40 : 517,337.40 = 218,531.60 : x
  2. Step 2: Convert to fraction form
    344,794.40/517,337.40 = 218,531.60/x
  3. Step 3: Cross multiply
    344,794.40x = 517,337.40 × 218,531.60
  4. Step 4: Simplify right side
    344,794.40x = 113,054,569,761.84
  5. Step 5: Solve for x
    x = 113,054,569,761.84/344,794.40
  6. Step 6: Final answer
    x = 327,889.81

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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.