Home / 279,966.09-386,362.93-159,112.47

Finding the Fourth Proportional to 279,966.09, 386,362.93 and 159,112.47

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Solution

The fourth proportional to 279,966.09, 386,362.93 and 159,112.47 is: 219,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,966.09 : 386,362.93 = 159,112.47 : x
  2. Step 2: Convert to fraction form
    279,966.09/386,362.93 = 159,112.47/x
  3. Step 3: Cross multiply
    279,966.09x = 386,362.93 × 159,112.47
  4. Step 4: Simplify right side
    279,966.09x = 61,475,161,458.15
  5. Step 5: Solve for x
    x = 61,475,161,458.15/279,966.09
  6. Step 6: Final answer
    x = 219,580.74

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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.