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Finding the Fourth Proportional to 382,121.80, 573,620.10 and 224,439.10

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Solution

The fourth proportional to 382,121.80, 573,620.10 and 224,439.10 is: 336,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,121.80 : 573,620.10 = 224,439.10 : x
  2. Step 2: Convert to fraction form
    382,121.80/573,620.10 = 224,439.10/x
  3. Step 3: Cross multiply
    382,121.80x = 573,620.10 × 224,439.10
  4. Step 4: Simplify right side
    382,121.80x = 128,742,778,985.91
  5. Step 5: Solve for x
    x = 128,742,778,985.91/382,121.80
  6. Step 6: Final answer
    x = 336,915.56

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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.