Home / 279,973.06-386,395.62-159,132.51

Finding the Fourth Proportional to 279,973.06, 386,395.62 and 159,132.51

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Solution

The fourth proportional to 279,973.06, 386,395.62 and 159,132.51 is: 219,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,973.06 : 386,395.62 = 159,132.51 : x
  2. Step 2: Convert to fraction form
    279,973.06/386,395.62 = 159,132.51/x
  3. Step 3: Cross multiply
    279,973.06x = 386,395.62 × 159,132.51
  4. Step 4: Simplify right side
    279,973.06x = 61,488,103,016.79
  5. Step 5: Solve for x
    x = 61,488,103,016.79/279,973.06
  6. Step 6: Final answer
    x = 219,621.50

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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.