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Finding the Fourth Proportional to 212,227.76, 292,915.90 and 121,644.44

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Solution

The fourth proportional to 212,227.76, 292,915.90 and 121,644.44 is: 167,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,227.76 : 292,915.90 = 121,644.44 : x
  2. Step 2: Convert to fraction form
    212,227.76/292,915.90 = 121,644.44/x
  3. Step 3: Cross multiply
    212,227.76x = 292,915.90 × 121,644.44
  4. Step 4: Simplify right side
    212,227.76x = 35,631,590,622.60
  5. Step 5: Solve for x
    x = 35,631,590,622.60/212,227.76
  6. Step 6: Final answer
    x = 167,893.17

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1.5x scale

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.