Home / 208,790.45-288,131.57-113,297.15

Finding the Fourth Proportional to 208,790.45, 288,131.57 and 113,297.15

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Solution

The fourth proportional to 208,790.45, 288,131.57 and 113,297.15 is: 156,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,790.45 : 288,131.57 = 113,297.15 : x
  2. Step 2: Convert to fraction form
    208,790.45/288,131.57 = 113,297.15/x
  3. Step 3: Cross multiply
    208,790.45x = 288,131.57 × 113,297.15
  4. Step 4: Simplify right side
    208,790.45x = 32,644,483,698.88
  5. Step 5: Solve for x
    x = 32,644,483,698.88/208,790.45
  6. Step 6: Final answer
    x = 156,350.46

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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.