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Finding the Fourth Proportional to 222,420.10, 333,630.15 and 143,623.30

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Solution

The fourth proportional to 222,420.10, 333,630.15 and 143,623.30 is: 215,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,420.10 : 333,630.15 = 143,623.30 : x
  2. Step 2: Convert to fraction form
    222,420.10/333,630.15 = 143,623.30/x
  3. Step 3: Cross multiply
    222,420.10x = 333,630.15 × 143,623.30
  4. Step 4: Simplify right side
    222,420.10x = 47,917,063,122.50
  5. Step 5: Solve for x
    x = 47,917,063,122.50/222,420.10
  6. Step 6: Final answer
    x = 215,434.95

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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.