Home / 279,972.58-386,364-152,650.30

Finding the Fourth Proportional to 279,972.58, 386,364 and 152,650.30

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Solution

The fourth proportional to 279,972.58, 386,364 and 152,650.30 is: 210,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,972.58 : 386,364 = 152,650.30 : x
  2. Step 2: Convert to fraction form
    279,972.58/386,364 = 152,650.30/x
  3. Step 3: Cross multiply
    279,972.58x = 386,364 × 152,650.30
  4. Step 4: Simplify right side
    279,972.58x = 58,978,580,509.20
  5. Step 5: Solve for x
    x = 58,978,580,509.20/279,972.58
  6. Step 6: Final answer
    x = 210,658.42

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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.