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Finding the Fourth Proportional to 237,031.38, 355,687.38 and 87,376.86

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Solution

The fourth proportional to 237,031.38, 355,687.38 and 87,376.86 is: 131,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,031.38 : 355,687.38 = 87,376.86 : x
  2. Step 2: Convert to fraction form
    237,031.38/355,687.38 = 87,376.86/x
  3. Step 3: Cross multiply
    237,031.38x = 355,687.38 × 87,376.86
  4. Step 4: Simplify right side
    237,031.38x = 31,078,846,406.03
  5. Step 5: Solve for x
    x = 31,078,846,406.03/237,031.38
  6. Step 6: Final answer
    x = 131,117.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.