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Finding the Fourth Proportional to 303,669.90, 455,286.15 and 170,590.95

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Solution

The fourth proportional to 303,669.90, 455,286.15 and 170,590.95 is: 255,763.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,669.90 : 455,286.15 = 170,590.95 : x
  2. Step 2: Convert to fraction form
    303,669.90/455,286.15 = 170,590.95/x
  3. Step 3: Cross multiply
    303,669.90x = 455,286.15 × 170,590.95
  4. Step 4: Simplify right side
    303,669.90x = 77,667,696,850.34
  5. Step 5: Solve for x
    x = 77,667,696,850.34/303,669.90
  6. Step 6: Final answer
    x = 255,763.57

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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.