Home / 279,856.98-386,213.04-159,018.75

Finding the Fourth Proportional to 279,856.98, 386,213.04 and 159,018.75

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Solution

The fourth proportional to 279,856.98, 386,213.04 and 159,018.75 is: 219,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,856.98 : 386,213.04 = 159,018.75 : x
  2. Step 2: Convert to fraction form
    279,856.98/386,213.04 = 159,018.75/x
  3. Step 3: Cross multiply
    279,856.98x = 386,213.04 × 159,018.75
  4. Step 4: Simplify right side
    279,856.98x = 61,415,114,854.50
  5. Step 5: Solve for x
    x = 61,415,114,854.50/279,856.98
  6. Step 6: Final answer
    x = 219,451.79

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1.5x scale

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.