Home / 279,856.32-386,201.16-152,531.52

Finding the Fourth Proportional to 279,856.32, 386,201.16 and 152,531.52

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Solution

The fourth proportional to 279,856.32, 386,201.16 and 152,531.52 is: 210,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,856.32 : 386,201.16 = 152,531.52 : x
  2. Step 2: Convert to fraction form
    279,856.32/386,201.16 = 152,531.52/x
  3. Step 3: Cross multiply
    279,856.32x = 386,201.16 × 152,531.52
  4. Step 4: Simplify right side
    279,856.32x = 58,907,849,960.56
  5. Step 5: Solve for x
    x = 58,907,849,960.56/279,856.32
  6. Step 6: Final answer
    x = 210,493.19

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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.