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Finding the Fourth Proportional to 342,320.44, 472,365.86 and 189,334.32

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Solution

The fourth proportional to 342,320.44, 472,365.86 and 189,334.32 is: 261,261.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,320.44 : 472,365.86 = 189,334.32 : x
  2. Step 2: Convert to fraction form
    342,320.44/472,365.86 = 189,334.32/x
  3. Step 3: Cross multiply
    342,320.44x = 472,365.86 × 189,334.32
  4. Step 4: Simplify right side
    342,320.44x = 89,435,068,894.32
  5. Step 5: Solve for x
    x = 89,435,068,894.32/342,320.44
  6. Step 6: Final answer
    x = 261,261.26

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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.