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Finding the Fourth Proportional to 664,339.80, 996,315.30 and 237,826.20

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Solution

The fourth proportional to 664,339.80, 996,315.30 and 237,826.20 is: 356,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,339.80 : 996,315.30 = 237,826.20 : x
  2. Step 2: Convert to fraction form
    664,339.80/996,315.30 = 237,826.20/x
  3. Step 3: Cross multiply
    664,339.80x = 996,315.30 × 237,826.20
  4. Step 4: Simplify right side
    664,339.80x = 236,949,881,800.86
  5. Step 5: Solve for x
    x = 236,949,881,800.86/664,339.80
  6. Step 6: Final answer
    x = 356,669.71

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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.