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Finding the Fourth Proportional to 342,417.86, 472,550.57 and 189,453.57

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Solution

The fourth proportional to 342,417.86, 472,550.57 and 189,453.57 is: 261,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,417.86 : 472,550.57 = 189,453.57 : x
  2. Step 2: Convert to fraction form
    342,417.86/472,550.57 = 189,453.57/x
  3. Step 3: Cross multiply
    342,417.86x = 472,550.57 × 189,453.57
  4. Step 4: Simplify right side
    342,417.86x = 89,526,391,544.77
  5. Step 5: Solve for x
    x = 89,526,391,544.77/342,417.86
  6. Step 6: Final answer
    x = 261,453.63

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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.