Home / 303,811.38-455,781.69-104,078.16

Finding the Fourth Proportional to 303,811.38, 455,781.69 and 104,078.16

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Solution

The fourth proportional to 303,811.38, 455,781.69 and 104,078.16 is: 156,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,811.38 : 455,781.69 = 104,078.16 : x
  2. Step 2: Convert to fraction form
    303,811.38/455,781.69 = 104,078.16/x
  3. Step 3: Cross multiply
    303,811.38x = 455,781.69 × 104,078.16
  4. Step 4: Simplify right side
    303,811.38x = 47,436,919,656.89
  5. Step 5: Solve for x
    x = 47,436,919,656.89/303,811.38
  6. Step 6: Final answer
    x = 156,139.38

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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.