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Finding the Fourth Proportional to 340,915.64, 511,333.36 and 104,260.37

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Solution

The fourth proportional to 340,915.64, 511,333.36 and 104,260.37 is: 156,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,915.64 : 511,333.36 = 104,260.37 : x
  2. Step 2: Convert to fraction form
    340,915.64/511,333.36 = 104,260.37/x
  3. Step 3: Cross multiply
    340,915.64x = 511,333.36 × 104,260.37
  4. Step 4: Simplify right side
    340,915.64x = 53,311,802,489.63
  5. Step 5: Solve for x
    x = 53,311,802,489.63/340,915.64
  6. Step 6: Final answer
    x = 156,378.29

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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.