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Finding the Fourth Proportional to 250,344.40, 375,477.36 and 81,863.32

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Solution

The fourth proportional to 250,344.40, 375,477.36 and 81,863.32 is: 122,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,344.40 : 375,477.36 = 81,863.32 : x
  2. Step 2: Convert to fraction form
    250,344.40/375,477.36 = 81,863.32/x
  3. Step 3: Cross multiply
    250,344.40x = 375,477.36 × 81,863.32
  4. Step 4: Simplify right side
    250,344.40x = 30,737,823,274.44
  5. Step 5: Solve for x
    x = 30,737,823,274.44/250,344.40
  6. Step 6: Final answer
    x = 122,782.15

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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.