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Finding the Fourth Proportional to 222,083.20, 333,124.80 and 128,828.80

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Solution

The fourth proportional to 222,083.20, 333,124.80 and 128,828.80 is: 193,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,083.20 : 333,124.80 = 128,828.80 : x
  2. Step 2: Convert to fraction form
    222,083.20/333,124.80 = 128,828.80/x
  3. Step 3: Cross multiply
    222,083.20x = 333,124.80 × 128,828.80
  4. Step 4: Simplify right side
    222,083.20x = 42,916,068,234.24
  5. Step 5: Solve for x
    x = 42,916,068,234.24/222,083.20
  6. Step 6: Final answer
    x = 193,243.20

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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.