Home / 315,334.20-472,079.70-306,118.20

Finding the Fourth Proportional to 315,334.20, 472,079.70 and 306,118.20

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Solution

The fourth proportional to 315,334.20, 472,079.70 and 306,118.20 is: 458,282.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,334.20 : 472,079.70 = 306,118.20 : x
  2. Step 2: Convert to fraction form
    315,334.20/472,079.70 = 306,118.20/x
  3. Step 3: Cross multiply
    315,334.20x = 472,079.70 × 306,118.20
  4. Step 4: Simplify right side
    315,334.20x = 144,512,188,020.54
  5. Step 5: Solve for x
    x = 144,512,188,020.54/315,334.20
  6. Step 6: Final answer
    x = 458,282.63

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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.