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Finding the Fourth Proportional to 422,116.16, 633,129.26 and 222,355.56

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Solution

The fourth proportional to 422,116.16, 633,129.26 and 222,355.56 is: 333,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,116.16 : 633,129.26 = 222,355.56 : x
  2. Step 2: Convert to fraction form
    422,116.16/633,129.26 = 222,355.56/x
  3. Step 3: Cross multiply
    422,116.16x = 633,129.26 × 222,355.56
  4. Step 4: Simplify right side
    422,116.16x = 140,779,811,159.69
  5. Step 5: Solve for x
    x = 140,779,811,159.69/422,116.16
  6. Step 6: Final answer
    x = 333,509.65

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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.