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Finding the Fourth Proportional to 325,672.70, 488,595.45 and 115,288.70

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Solution

The fourth proportional to 325,672.70, 488,595.45 and 115,288.70 is: 172,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,672.70 : 488,595.45 = 115,288.70 : x
  2. Step 2: Convert to fraction form
    325,672.70/488,595.45 = 115,288.70/x
  3. Step 3: Cross multiply
    325,672.70x = 488,595.45 × 115,288.70
  4. Step 4: Simplify right side
    325,672.70x = 56,329,534,256.42
  5. Step 5: Solve for x
    x = 56,329,534,256.42/325,672.70
  6. Step 6: Final answer
    x = 172,963.64

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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.