Home / 263,587.19-395,543.21-103,635

Finding the Fourth Proportional to 263,587.19, 395,543.21 and 103,635

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Solution

The fourth proportional to 263,587.19, 395,543.21 and 103,635 is: 155,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,587.19 : 395,543.21 = 103,635 : x
  2. Step 2: Convert to fraction form
    263,587.19/395,543.21 = 103,635/x
  3. Step 3: Cross multiply
    263,587.19x = 395,543.21 × 103,635
  4. Step 4: Simplify right side
    263,587.19x = 40,992,120,050.18
  5. Step 5: Solve for x
    x = 40,992,120,050.18/263,587.19
  6. Step 6: Final answer
    x = 155,516.36

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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.