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Finding the Fourth Proportional to 328,004.10, 492,004.15 and 84,845.16

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Solution

The fourth proportional to 328,004.10, 492,004.15 and 84,845.16 is: 127,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,004.10 : 492,004.15 = 84,845.16 : x
  2. Step 2: Convert to fraction form
    328,004.10/492,004.15 = 84,845.16/x
  3. Step 3: Cross multiply
    328,004.10x = 492,004.15 × 84,845.16
  4. Step 4: Simplify right side
    328,004.10x = 41,744,170,615.30
  5. Step 5: Solve for x
    x = 41,744,170,615.30/328,004.10
  6. Step 6: Final answer
    x = 127,267.22

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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.