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Finding the Fourth Proportional to 342,352.79, 472,460.77 and 189,388.34

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Solution

The fourth proportional to 342,352.79, 472,460.77 and 189,388.34 is: 261,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,352.79 : 472,460.77 = 189,388.34 : x
  2. Step 2: Convert to fraction form
    342,352.79/472,460.77 = 189,388.34/x
  3. Step 3: Cross multiply
    342,352.79x = 472,460.77 × 189,388.34
  4. Step 4: Simplify right side
    342,352.79x = 89,478,562,183.86
  5. Step 5: Solve for x
    x = 89,478,562,183.86/342,352.79
  6. Step 6: Final answer
    x = 261,363.61

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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.