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Finding the Fourth Proportional to 361,635.36, 499,043.28 and 202,649.12

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Solution

The fourth proportional to 361,635.36, 499,043.28 and 202,649.12 is: 279,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,635.36 : 499,043.28 = 202,649.12 : x
  2. Step 2: Convert to fraction form
    361,635.36/499,043.28 = 202,649.12/x
  3. Step 3: Cross multiply
    361,635.36x = 499,043.28 × 202,649.12
  4. Step 4: Simplify right side
    361,635.36x = 101,130,681,533.91
  5. Step 5: Solve for x
    x = 101,130,681,533.91/361,635.36
  6. Step 6: Final answer
    x = 279,648.21

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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.