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Finding the Fourth Proportional to 267,795.70, 400,915.95 and 260,019.70

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Solution

The fourth proportional to 267,795.70, 400,915.95 and 260,019.70 is: 389,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,795.70 : 400,915.95 = 260,019.70 : x
  2. Step 2: Convert to fraction form
    267,795.70/400,915.95 = 260,019.70/x
  3. Step 3: Cross multiply
    267,795.70x = 400,915.95 × 260,019.70
  4. Step 4: Simplify right side
    267,795.70x = 104,246,045,044.22
  5. Step 5: Solve for x
    x = 104,246,045,044.22/267,795.70
  6. Step 6: Final answer
    x = 389,274.53

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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.