Home / 298,346.32-447,520.68-120,856.72

Finding the Fourth Proportional to 298,346.32, 447,520.68 and 120,856.72

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Solution

The fourth proportional to 298,346.32, 447,520.68 and 120,856.72 is: 181,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,346.32 : 447,520.68 = 120,856.72 : x
  2. Step 2: Convert to fraction form
    298,346.32/447,520.68 = 120,856.72/x
  3. Step 3: Cross multiply
    298,346.32x = 447,520.68 × 120,856.72
  4. Step 4: Simplify right side
    298,346.32x = 54,085,881,516.97
  5. Step 5: Solve for x
    x = 54,085,881,516.97/298,346.32
  6. Step 6: Final answer
    x = 181,285.57

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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.