Home / 342,621.55-472,814.87-189,660.03

Finding the Fourth Proportional to 342,621.55, 472,814.87 and 189,660.03

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Solution

The fourth proportional to 342,621.55, 472,814.87 and 189,660.03 is: 261,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,621.55 : 472,814.87 = 189,660.03 : x
  2. Step 2: Convert to fraction form
    342,621.55/472,814.87 = 189,660.03/x
  3. Step 3: Cross multiply
    342,621.55x = 472,814.87 × 189,660.03
  4. Step 4: Simplify right side
    342,621.55x = 89,674,083,433.71
  5. Step 5: Solve for x
    x = 89,674,083,433.71/342,621.55
  6. Step 6: Final answer
    x = 261,729.26

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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.