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Finding the Fourth Proportional to 237,889.88, 328,257.86 and 130,431.63

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Solution

The fourth proportional to 237,889.88, 328,257.86 and 130,431.63 is: 179,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,889.88 : 328,257.86 = 130,431.63 : x
  2. Step 2: Convert to fraction form
    237,889.88/328,257.86 = 130,431.63/x
  3. Step 3: Cross multiply
    237,889.88x = 328,257.86 × 130,431.63
  4. Step 4: Simplify right side
    237,889.88x = 42,815,207,087.95
  5. Step 5: Solve for x
    x = 42,815,207,087.95/237,889.88
  6. Step 6: Final answer
    x = 179,979.11

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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.