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Finding the Fourth Proportional to 315,493.83, 435,419.69 and 179,560.85

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Solution

The fourth proportional to 315,493.83, 435,419.69 and 179,560.85 is: 247,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,493.83 : 435,419.69 = 179,560.85 : x
  2. Step 2: Convert to fraction form
    315,493.83/435,419.69 = 179,560.85/x
  3. Step 3: Cross multiply
    315,493.83x = 435,419.69 × 179,560.85
  4. Step 4: Simplify right side
    315,493.83x = 78,184,326,568.23
  5. Step 5: Solve for x
    x = 78,184,326,568.23/315,493.83
  6. Step 6: Final answer
    x = 247,815.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.