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Finding the Fourth Proportional to 279,852.44, 386,204.52 and 152,536.28

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Solution

The fourth proportional to 279,852.44, 386,204.52 and 152,536.28 is: 210,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,852.44 : 386,204.52 = 152,536.28 : x
  2. Step 2: Convert to fraction form
    279,852.44/386,204.52 = 152,536.28/x
  3. Step 3: Cross multiply
    279,852.44x = 386,204.52 × 152,536.28
  4. Step 4: Simplify right side
    279,852.44x = 58,910,200,799.99
  5. Step 5: Solve for x
    x = 58,910,200,799.99/279,852.44
  6. Step 6: Final answer
    x = 210,504.51

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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.