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Finding the Fourth Proportional to 350,821.51, 526,101.64 and 126,120.62

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Solution

The fourth proportional to 350,821.51, 526,101.64 and 126,120.62 is: 189,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,821.51 : 526,101.64 = 126,120.62 : x
  2. Step 2: Convert to fraction form
    350,821.51/526,101.64 = 126,120.62/x
  3. Step 3: Cross multiply
    350,821.51x = 526,101.64 × 126,120.62
  4. Step 4: Simplify right side
    350,821.51x = 66,352,265,019.82
  5. Step 5: Solve for x
    x = 66,352,265,019.82/350,821.51
  6. Step 6: Final answer
    x = 189,133.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.