Home / 279,979.06-386,361.48-159,118.24

Finding the Fourth Proportional to 279,979.06, 386,361.48 and 159,118.24

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Solution

The fourth proportional to 279,979.06, 386,361.48 and 159,118.24 is: 219,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,979.06 : 386,361.48 = 159,118.24 : x
  2. Step 2: Convert to fraction form
    279,979.06/386,361.48 = 159,118.24/x
  3. Step 3: Cross multiply
    279,979.06x = 386,361.48 × 159,118.24
  4. Step 4: Simplify right side
    279,979.06x = 61,477,158,701.40
  5. Step 5: Solve for x
    x = 61,477,158,701.40/279,979.06
  6. Step 6: Final answer
    x = 219,577.70

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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.