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Finding the Fourth Proportional to 488,007.09, 732,009.69 and 133,020.54

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Solution

The fourth proportional to 488,007.09, 732,009.69 and 133,020.54 is: 199,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,007.09 : 732,009.69 = 133,020.54 : x
  2. Step 2: Convert to fraction form
    488,007.09/732,009.69 = 133,020.54/x
  3. Step 3: Cross multiply
    488,007.09x = 732,009.69 × 133,020.54
  4. Step 4: Simplify right side
    488,007.09x = 97,372,324,249.03
  5. Step 5: Solve for x
    x = 97,372,324,249.03/488,007.09
  6. Step 6: Final answer
    x = 199,530.55

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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.