Home / 215,821.10-323,731.65-214,438.70

Finding the Fourth Proportional to 215,821.10, 323,731.65 and 214,438.70

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Solution

The fourth proportional to 215,821.10, 323,731.65 and 214,438.70 is: 321,658.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,821.10 : 323,731.65 = 214,438.70 : x
  2. Step 2: Convert to fraction form
    215,821.10/323,731.65 = 214,438.70/x
  3. Step 3: Cross multiply
    215,821.10x = 323,731.65 × 214,438.70
  4. Step 4: Simplify right side
    215,821.10x = 69,420,594,174.86
  5. Step 5: Solve for x
    x = 69,420,594,174.86/215,821.10
  6. Step 6: Final answer
    x = 321,658.05

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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.