Home / 209,247.44-288,668.22-139,415.72

Finding the Fourth Proportional to 209,247.44, 288,668.22 and 139,415.72

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Solution

The fourth proportional to 209,247.44, 288,668.22 and 139,415.72 is: 192,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,247.44 : 288,668.22 = 139,415.72 : x
  2. Step 2: Convert to fraction form
    209,247.44/288,668.22 = 139,415.72/x
  3. Step 3: Cross multiply
    209,247.44x = 288,668.22 × 139,415.72
  4. Step 4: Simplify right side
    209,247.44x = 40,244,887,732.42
  5. Step 5: Solve for x
    x = 40,244,887,732.42/209,247.44
  6. Step 6: Final answer
    x = 192,331.57

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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.