Home / 288,536.12-398,167.05-161,208.98

Finding the Fourth Proportional to 288,536.12, 398,167.05 and 161,208.98

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Solution

The fourth proportional to 288,536.12, 398,167.05 and 161,208.98 is: 222,461.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,536.12 : 398,167.05 = 161,208.98 : x
  2. Step 2: Convert to fraction form
    288,536.12/398,167.05 = 161,208.98/x
  3. Step 3: Cross multiply
    288,536.12x = 398,167.05 × 161,208.98
  4. Step 4: Simplify right side
    288,536.12x = 64,188,104,000.11
  5. Step 5: Solve for x
    x = 64,188,104,000.11/288,536.12
  6. Step 6: Final answer
    x = 222,461.24

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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.