Home / 215,850.30-323,775.45-137,312.70

Finding the Fourth Proportional to 215,850.30, 323,775.45 and 137,312.70

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Solution

The fourth proportional to 215,850.30, 323,775.45 and 137,312.70 is: 205,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,850.30 : 323,775.45 = 137,312.70 : x
  2. Step 2: Convert to fraction form
    215,850.30/323,775.45 = 137,312.70/x
  3. Step 3: Cross multiply
    215,850.30x = 323,775.45 × 137,312.70
  4. Step 4: Simplify right side
    215,850.30x = 44,458,481,233.22
  5. Step 5: Solve for x
    x = 44,458,481,233.22/215,850.30
  6. Step 6: Final answer
    x = 205,969.05

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1.5x scale

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.