Home / 315,010.14-472,450.77-90,310.38

Finding the Fourth Proportional to 315,010.14, 472,450.77 and 90,310.38

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Solution

The fourth proportional to 315,010.14, 472,450.77 and 90,310.38 is: 135,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,010.14 : 472,450.77 = 90,310.38 : x
  2. Step 2: Convert to fraction form
    315,010.14/472,450.77 = 90,310.38/x
  3. Step 3: Cross multiply
    315,010.14x = 472,450.77 × 90,310.38
  4. Step 4: Simplify right side
    315,010.14x = 42,667,208,569.99
  5. Step 5: Solve for x
    x = 42,667,208,569.99/315,010.14
  6. Step 6: Final answer
    x = 135,447.10

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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.