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Finding the Fourth Proportional to 276,291.94, 380,915.85 and 180,634.18

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Solution

The fourth proportional to 276,291.94, 380,915.85 and 180,634.18 is: 249,035.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,291.94 : 380,915.85 = 180,634.18 : x
  2. Step 2: Convert to fraction form
    276,291.94/380,915.85 = 180,634.18/x
  3. Step 3: Cross multiply
    276,291.94x = 380,915.85 × 180,634.18
  4. Step 4: Simplify right side
    276,291.94x = 68,806,422,213.75
  5. Step 5: Solve for x
    x = 68,806,422,213.75/276,291.94
  6. Step 6: Final answer
    x = 249,035.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.