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Finding the Fourth Proportional to 309,751.81, 464,676.32 and 132,259.75

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Solution

The fourth proportional to 309,751.81, 464,676.32 and 132,259.75 is: 198,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,751.81 : 464,676.32 = 132,259.75 : x
  2. Step 2: Convert to fraction form
    309,751.81/464,676.32 = 132,259.75/x
  3. Step 3: Cross multiply
    309,751.81x = 464,676.32 × 132,259.75
  4. Step 4: Simplify right side
    309,751.81x = 61,457,973,914.12
  5. Step 5: Solve for x
    x = 61,457,973,914.12/309,751.81
  6. Step 6: Final answer
    x = 198,410.38

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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.