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Finding the Fourth Proportional to 342,528.62, 472,682.70 and 189,557.91

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Solution

The fourth proportional to 342,528.62, 472,682.70 and 189,557.91 is: 261,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,528.62 : 472,682.70 = 189,557.91 : x
  2. Step 2: Convert to fraction form
    342,528.62/472,682.70 = 189,557.91/x
  3. Step 3: Cross multiply
    342,528.62x = 472,682.70 × 189,557.91
  4. Step 4: Simplify right side
    342,528.62x = 89,600,744,705.16
  5. Step 5: Solve for x
    x = 89,600,744,705.16/342,528.62
  6. Step 6: Final answer
    x = 261,586.16

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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.