Home / 215,848.10-323,772.15-209,704.10

Finding the Fourth Proportional to 215,848.10, 323,772.15 and 209,704.10

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Solution

The fourth proportional to 215,848.10, 323,772.15 and 209,704.10 is: 314,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,848.10 : 323,772.15 = 209,704.10 : x
  2. Step 2: Convert to fraction form
    215,848.10/323,772.15 = 209,704.10/x
  3. Step 3: Cross multiply
    215,848.10x = 323,772.15 × 209,704.10
  4. Step 4: Simplify right side
    215,848.10x = 67,896,347,320.82
  5. Step 5: Solve for x
    x = 67,896,347,320.82/215,848.10
  6. Step 6: Final answer
    x = 314,556.15

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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.