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Finding the Fourth Proportional to 279,959.08, 386,326.88 and 159,083.59

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Solution

The fourth proportional to 279,959.08, 386,326.88 and 159,083.59 is: 219,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,959.08 : 386,326.88 = 159,083.59 : x
  2. Step 2: Convert to fraction form
    279,959.08/386,326.88 = 159,083.59/x
  3. Step 3: Cross multiply
    279,959.08x = 386,326.88 × 159,083.59
  4. Step 4: Simplify right side
    279,959.08x = 61,458,265,680.76
  5. Step 5: Solve for x
    x = 61,458,265,680.76/279,959.08
  6. Step 6: Final answer
    x = 219,525.89

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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.