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Finding the Fourth Proportional to 663,362.40, 994,800.60 and 214,201.20

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Solution

The fourth proportional to 663,362.40, 994,800.60 and 214,201.20 is: 321,223.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,362.40 : 994,800.60 = 214,201.20 : x
  2. Step 2: Convert to fraction form
    663,362.40/994,800.60 = 214,201.20/x
  3. Step 3: Cross multiply
    663,362.40x = 994,800.60 × 214,201.20
  4. Step 4: Simplify right side
    663,362.40x = 213,087,482,280.72
  5. Step 5: Solve for x
    x = 213,087,482,280.72/663,362.40
  6. Step 6: Final answer
    x = 321,223.33

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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.