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Finding the Fourth Proportional to 326,014.70, 488,969.58 and 89,302.04

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Solution

The fourth proportional to 326,014.70, 488,969.58 and 89,302.04 is: 133,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,014.70 : 488,969.58 = 89,302.04 : x
  2. Step 2: Convert to fraction form
    326,014.70/488,969.58 = 89,302.04/x
  3. Step 3: Cross multiply
    326,014.70x = 488,969.58 × 89,302.04
  4. Step 4: Simplify right side
    326,014.70x = 43,665,980,991.94
  5. Step 5: Solve for x
    x = 43,665,980,991.94/326,014.70
  6. Step 6: Final answer
    x = 133,938.69

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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.