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Finding the Fourth Proportional to 422,219.68, 633,436.45 and 122,693.83

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Solution

The fourth proportional to 422,219.68, 633,436.45 and 122,693.83 is: 184,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,219.68 : 633,436.45 = 122,693.83 : x
  2. Step 2: Convert to fraction form
    422,219.68/633,436.45 = 122,693.83/x
  3. Step 3: Cross multiply
    422,219.68x = 633,436.45 × 122,693.83
  4. Step 4: Simplify right side
    422,219.68x = 77,718,742,221.78
  5. Step 5: Solve for x
    x = 77,718,742,221.78/422,219.68
  6. Step 6: Final answer
    x = 184,071.81

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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.