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Finding the Fourth Proportional to 342,436.85, 472,553.75 and 189,471.05

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Solution

The fourth proportional to 342,436.85, 472,553.75 and 189,471.05 is: 261,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,436.85 : 472,553.75 = 189,471.05 : x
  2. Step 2: Convert to fraction form
    342,436.85/472,553.75 = 189,471.05/x
  3. Step 3: Cross multiply
    342,436.85x = 472,553.75 × 189,471.05
  4. Step 4: Simplify right side
    342,436.85x = 89,535,255,193.94
  5. Step 5: Solve for x
    x = 89,535,255,193.94/342,436.85
  6. Step 6: Final answer
    x = 261,465.01

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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.