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Finding the Fourth Proportional to 282,764.88, 390,059.82 and 179,209.64

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Solution

The fourth proportional to 282,764.88, 390,059.82 and 179,209.64 is: 247,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,764.88 : 390,059.82 = 179,209.64 : x
  2. Step 2: Convert to fraction form
    282,764.88/390,059.82 = 179,209.64/x
  3. Step 3: Cross multiply
    282,764.88x = 390,059.82 × 179,209.64
  4. Step 4: Simplify right side
    282,764.88x = 69,902,479,920.66
  5. Step 5: Solve for x
    x = 69,902,479,920.66/282,764.88
  6. Step 6: Final answer
    x = 247,210.62

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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.