Home / 212,269.20-317,976.39-98,256.30

Finding the Fourth Proportional to 212,269.20, 317,976.39 and 98,256.30

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Solution

The fourth proportional to 212,269.20, 317,976.39 and 98,256.30 is: 147,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,269.20 : 317,976.39 = 98,256.30 : x
  2. Step 2: Convert to fraction form
    212,269.20/317,976.39 = 98,256.30/x
  3. Step 3: Cross multiply
    212,269.20x = 317,976.39 × 98,256.30
  4. Step 4: Simplify right side
    212,269.20x = 31,243,183,568.76
  5. Step 5: Solve for x
    x = 31,243,183,568.76/212,269.20
  6. Step 6: Final answer
    x = 147,186.61

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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.