Home / 215,677.78-323,516.90-215,366.28

Finding the Fourth Proportional to 215,677.78, 323,516.90 and 215,366.28

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Solution

The fourth proportional to 215,677.78, 323,516.90 and 215,366.28 is: 323,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,677.78 : 323,516.90 = 215,366.28 : x
  2. Step 2: Convert to fraction form
    215,677.78/323,516.90 = 215,366.28/x
  3. Step 3: Cross multiply
    215,677.78x = 323,516.90 × 215,366.28
  4. Step 4: Simplify right side
    215,677.78x = 69,674,630,799.89
  5. Step 5: Solve for x
    x = 69,674,630,799.89/215,677.78
  6. Step 6: Final answer
    x = 323,049.65

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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.