Home / 288,881.22-398,756.30-198,536.26

Finding the Fourth Proportional to 288,881.22, 398,756.30 and 198,536.26

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Solution

The fourth proportional to 288,881.22, 398,756.30 and 198,536.26 is: 274,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,881.22 : 398,756.30 = 198,536.26 : x
  2. Step 2: Convert to fraction form
    288,881.22/398,756.30 = 198,536.26/x
  3. Step 3: Cross multiply
    288,881.22x = 398,756.30 × 198,536.26
  4. Step 4: Simplify right side
    288,881.22x = 79,167,584,453.44
  5. Step 5: Solve for x
    x = 79,167,584,453.44/288,881.22
  6. Step 6: Final answer
    x = 274,048.91

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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.