Home / 289,119.56-433,429.92-139,153.55

Finding the Fourth Proportional to 289,119.56, 433,429.92 and 139,153.55

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Solution

The fourth proportional to 289,119.56, 433,429.92 and 139,153.55 is: 208,610.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,119.56 : 433,429.92 = 139,153.55 : x
  2. Step 2: Convert to fraction form
    289,119.56/433,429.92 = 139,153.55/x
  3. Step 3: Cross multiply
    289,119.56x = 433,429.92 × 139,153.55
  4. Step 4: Simplify right side
    289,119.56x = 60,313,309,877.07
  5. Step 5: Solve for x
    x = 60,313,309,877.07/289,119.56
  6. Step 6: Final answer
    x = 208,610.28

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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.