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Finding the Fourth Proportional to 326,013.69, 488,968.08 and 89,301.03

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Solution

The fourth proportional to 326,013.69, 488,968.08 and 89,301.03 is: 133,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,013.69 : 488,968.08 = 89,301.03 : x
  2. Step 2: Convert to fraction form
    326,013.69/488,968.08 = 89,301.03/x
  3. Step 3: Cross multiply
    326,013.69x = 488,968.08 × 89,301.03
  4. Step 4: Simplify right side
    326,013.69x = 43,665,353,181.12
  5. Step 5: Solve for x
    x = 43,665,353,181.12/326,013.69
  6. Step 6: Final answer
    x = 133,937.18

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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.