Home / 208,790.43-288,131.56-113,297.13

Finding the Fourth Proportional to 208,790.43, 288,131.56 and 113,297.13

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Solution

The fourth proportional to 208,790.43, 288,131.56 and 113,297.13 is: 156,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,790.43 : 288,131.56 = 113,297.13 : x
  2. Step 2: Convert to fraction form
    208,790.43/288,131.56 = 113,297.13/x
  3. Step 3: Cross multiply
    208,790.43x = 288,131.56 × 113,297.13
  4. Step 4: Simplify right side
    208,790.43x = 32,644,478,083.98
  5. Step 5: Solve for x
    x = 32,644,478,083.98/208,790.43
  6. Step 6: Final answer
    x = 156,350.45

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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.