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Finding the Fourth Proportional to 277,299.52, 382,690.84 and 156,396.70

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Solution

The fourth proportional to 277,299.52, 382,690.84 and 156,396.70 is: 215,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,299.52 : 382,690.84 = 156,396.70 : x
  2. Step 2: Convert to fraction form
    277,299.52/382,690.84 = 156,396.70/x
  3. Step 3: Cross multiply
    277,299.52x = 382,690.84 × 156,396.70
  4. Step 4: Simplify right side
    277,299.52x = 59,851,584,496.23
  5. Step 5: Solve for x
    x = 59,851,584,496.23/277,299.52
  6. Step 6: Final answer
    x = 215,837.32

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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.