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Finding the Fourth Proportional to 382,620.70, 573,931.05 and 214,659.10

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Solution

The fourth proportional to 382,620.70, 573,931.05 and 214,659.10 is: 321,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,620.70 : 573,931.05 = 214,659.10 : x
  2. Step 2: Convert to fraction form
    382,620.70/573,931.05 = 214,659.10/x
  3. Step 3: Cross multiply
    382,620.70x = 573,931.05 × 214,659.10
  4. Step 4: Simplify right side
    382,620.70x = 123,199,522,655.06
  5. Step 5: Solve for x
    x = 123,199,522,655.06/382,620.70
  6. Step 6: Final answer
    x = 321,988.65

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Similar ratio
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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.