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Finding the Fourth Proportional to 222,035.40, 333,398.70 and 128,723.40

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Solution

The fourth proportional to 222,035.40, 333,398.70 and 128,723.40 is: 193,285.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,035.40 : 333,398.70 = 128,723.40 : x
  2. Step 2: Convert to fraction form
    222,035.40/333,398.70 = 128,723.40/x
  3. Step 3: Cross multiply
    222,035.40x = 333,398.70 × 128,723.40
  4. Step 4: Simplify right side
    222,035.40x = 42,916,214,219.58
  5. Step 5: Solve for x
    x = 42,916,214,219.58/222,035.40
  6. Step 6: Final answer
    x = 193,285.46

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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.