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Finding the Fourth Proportional to 312,337.98, 468,699.69 and 122,765.04

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Solution

The fourth proportional to 312,337.98, 468,699.69 and 122,765.04 is: 184,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,337.98 : 468,699.69 = 122,765.04 : x
  2. Step 2: Convert to fraction form
    312,337.98/468,699.69 = 122,765.04/x
  3. Step 3: Cross multiply
    312,337.98x = 468,699.69 × 122,765.04
  4. Step 4: Simplify right side
    312,337.98x = 57,539,936,190.84
  5. Step 5: Solve for x
    x = 57,539,936,190.84/312,337.98
  6. Step 6: Final answer
    x = 184,223.31

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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.