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Finding the Fourth Proportional to 371,063.64, 512,548.38 and 274,464

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Solution

The fourth proportional to 371,063.64, 512,548.38 and 274,464 is: 379,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,063.64 : 512,548.38 = 274,464 : x
  2. Step 2: Convert to fraction form
    371,063.64/512,548.38 = 274,464/x
  3. Step 3: Cross multiply
    371,063.64x = 512,548.38 × 274,464
  4. Step 4: Simplify right side
    371,063.64x = 140,676,078,568.32
  5. Step 5: Solve for x
    x = 140,676,078,568.32/371,063.64
  6. Step 6: Final answer
    x = 379,115.77

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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.