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Finding the Fourth Proportional to 342,625.53, 472,817.49 and 189,660.45

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Solution

The fourth proportional to 342,625.53, 472,817.49 and 189,660.45 is: 261,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,625.53 : 472,817.49 = 189,660.45 : x
  2. Step 2: Convert to fraction form
    342,625.53/472,817.49 = 189,660.45/x
  3. Step 3: Cross multiply
    342,625.53x = 472,817.49 × 189,660.45
  4. Step 4: Simplify right side
    342,625.53x = 89,674,774,608.88
  5. Step 5: Solve for x
    x = 89,674,774,608.88/342,625.53
  6. Step 6: Final answer
    x = 261,728.24

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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.