Home / 324,912.42-487,190.21-100,210.50

Finding the Fourth Proportional to 324,912.42, 487,190.21 and 100,210.50

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Solution

The fourth proportional to 324,912.42, 487,190.21 and 100,210.50 is: 150,260.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,912.42 : 487,190.21 = 100,210.50 : x
  2. Step 2: Convert to fraction form
    324,912.42/487,190.21 = 100,210.50/x
  3. Step 3: Cross multiply
    324,912.42x = 487,190.21 × 100,210.50
  4. Step 4: Simplify right side
    324,912.42x = 48,821,574,038.15
  5. Step 5: Solve for x
    x = 48,821,574,038.15/324,912.42
  6. Step 6: Final answer
    x = 150,260.72

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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.