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Finding the Fourth Proportional to 312,077.70, 468,381.96 and 122,670.72

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Solution

The fourth proportional to 312,077.70, 468,381.96 and 122,670.72 is: 184,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,077.70 : 468,381.96 = 122,670.72 : x
  2. Step 2: Convert to fraction form
    312,077.70/468,381.96 = 122,670.72/x
  3. Step 3: Cross multiply
    312,077.70x = 468,381.96 × 122,670.72
  4. Step 4: Simplify right side
    312,077.70x = 57,456,752,268.21
  5. Step 5: Solve for x
    x = 57,456,752,268.21/312,077.70
  6. Step 6: Final answer
    x = 184,110.41

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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.