Home / 208,790.79-288,132.05-113,297.48

Finding the Fourth Proportional to 208,790.79, 288,132.05 and 113,297.48

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Solution

The fourth proportional to 208,790.79, 288,132.05 and 113,297.48 is: 156,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,790.79 : 288,132.05 = 113,297.48 : x
  2. Step 2: Convert to fraction form
    208,790.79/288,132.05 = 113,297.48/x
  3. Step 3: Cross multiply
    208,790.79x = 288,132.05 × 113,297.48
  4. Step 4: Simplify right side
    208,790.79x = 32,644,633,165.09
  5. Step 5: Solve for x
    x = 32,644,633,165.09/208,790.79
  6. Step 6: Final answer
    x = 156,350.93

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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.