Home / 289,109.23-433,414.36-139,143.19

Finding the Fourth Proportional to 289,109.23, 433,414.36 and 139,143.19

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Solution

The fourth proportional to 289,109.23, 433,414.36 and 139,143.19 is: 208,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,109.23 : 433,414.36 = 139,143.19 : x
  2. Step 2: Convert to fraction form
    289,109.23/433,414.36 = 139,143.19/x
  3. Step 3: Cross multiply
    289,109.23x = 433,414.36 × 139,143.19
  4. Step 4: Simplify right side
    289,109.23x = 60,306,656,642.21
  5. Step 5: Solve for x
    x = 60,306,656,642.21/289,109.23
  6. Step 6: Final answer
    x = 208,594.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.