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Finding the Fourth Proportional to 342,523.20, 472,674.50 and 187,473.72

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Solution

The fourth proportional to 342,523.20, 472,674.50 and 187,473.72 is: 258,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,523.20 : 472,674.50 = 187,473.72 : x
  2. Step 2: Convert to fraction form
    342,523.20/472,674.50 = 187,473.72/x
  3. Step 3: Cross multiply
    342,523.20x = 472,674.50 × 187,473.72
  4. Step 4: Simplify right side
    342,523.20x = 88,614,046,864.14
  5. Step 5: Solve for x
    x = 88,614,046,864.14/342,523.20
  6. Step 6: Final answer
    x = 258,709.62

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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.