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Finding the Fourth Proportional to 617,468.20, 926,202.30 and 218,105.80

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Solution

The fourth proportional to 617,468.20, 926,202.30 and 218,105.80 is: 327,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,468.20 : 926,202.30 = 218,105.80 : x
  2. Step 2: Convert to fraction form
    617,468.20/926,202.30 = 218,105.80/x
  3. Step 3: Cross multiply
    617,468.20x = 926,202.30 × 218,105.80
  4. Step 4: Simplify right side
    617,468.20x = 202,010,093,603.34
  5. Step 5: Solve for x
    x = 202,010,093,603.34/617,468.20
  6. Step 6: Final answer
    x = 327,158.70

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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.