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Finding the Fourth Proportional to 237,989.44, 328,422.72 and 137,385.28

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Solution

The fourth proportional to 237,989.44, 328,422.72 and 137,385.28 is: 189,590.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,989.44 : 328,422.72 = 137,385.28 : x
  2. Step 2: Convert to fraction form
    237,989.44/328,422.72 = 137,385.28/x
  3. Step 3: Cross multiply
    237,989.44x = 328,422.72 × 137,385.28
  4. Step 4: Simplify right side
    237,989.44x = 45,120,447,345.56
  5. Step 5: Solve for x
    x = 45,120,447,345.56/237,989.44
  6. Step 6: Final answer
    x = 189,590.12

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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.