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Finding the Fourth Proportional to 663,363.40, 994,802.10 and 214,202.20

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Solution

The fourth proportional to 663,363.40, 994,802.10 and 214,202.20 is: 321,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,363.40 : 994,802.10 = 214,202.20 : x
  2. Step 2: Convert to fraction form
    663,363.40/994,802.10 = 214,202.20/x
  3. Step 3: Cross multiply
    663,363.40x = 994,802.10 × 214,202.20
  4. Step 4: Simplify right side
    663,363.40x = 213,088,798,384.62
  5. Step 5: Solve for x
    x = 213,088,798,384.62/663,363.40
  6. Step 6: Final answer
    x = 321,224.83

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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.