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Finding the Fourth Proportional to 342,434.85, 472,550.99 and 189,469.05

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Solution

The fourth proportional to 342,434.85, 472,550.99 and 189,469.05 is: 261,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,434.85 : 472,550.99 = 189,469.05 : x
  2. Step 2: Convert to fraction form
    342,434.85/472,550.99 = 189,469.05/x
  3. Step 3: Cross multiply
    342,434.85x = 472,550.99 × 189,469.05
  4. Step 4: Simplify right side
    342,434.85x = 89,533,787,151.86
  5. Step 5: Solve for x
    x = 89,533,787,151.86/342,434.85
  6. Step 6: Final answer
    x = 261,462.25

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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.