Home / 217,278.73-326,045.22-90,908.38

Finding the Fourth Proportional to 217,278.73, 326,045.22 and 90,908.38

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Solution

The fourth proportional to 217,278.73, 326,045.22 and 90,908.38 is: 136,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,278.73 : 326,045.22 = 90,908.38 : x
  2. Step 2: Convert to fraction form
    217,278.73/326,045.22 = 90,908.38/x
  3. Step 3: Cross multiply
    217,278.73x = 326,045.22 × 90,908.38
  4. Step 4: Simplify right side
    217,278.73x = 29,640,242,756.94
  5. Step 5: Solve for x
    x = 29,640,242,756.94/217,278.73
  6. Step 6: Final answer
    x = 136,415.76

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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.