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Finding the Fourth Proportional to 322,121.60, 482,721.60 and 237,219.20

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Solution

The fourth proportional to 322,121.60, 482,721.60 and 237,219.20 is: 355,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,121.60 : 482,721.60 = 237,219.20 : x
  2. Step 2: Convert to fraction form
    322,121.60/482,721.60 = 237,219.20/x
  3. Step 3: Cross multiply
    322,121.60x = 482,721.60 × 237,219.20
  4. Step 4: Simplify right side
    322,121.60x = 114,510,831,774.72
  5. Step 5: Solve for x
    x = 114,510,831,774.72/322,121.60
  6. Step 6: Final answer
    x = 355,489.45

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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.