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Finding the Fourth Proportional to 237,803.78, 328,169.10 and 130,371.50

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Solution

The fourth proportional to 237,803.78, 328,169.10 and 130,371.50 is: 179,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,803.78 : 328,169.10 = 130,371.50 : x
  2. Step 2: Convert to fraction form
    237,803.78/328,169.10 = 130,371.50/x
  3. Step 3: Cross multiply
    237,803.78x = 328,169.10 × 130,371.50
  4. Step 4: Simplify right side
    237,803.78x = 42,783,897,820.65
  5. Step 5: Solve for x
    x = 42,783,897,820.65/237,803.78
  6. Step 6: Final answer
    x = 179,912.61

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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.