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Finding the Fourth Proportional to 399,667.04, 599,486.72 and 100,150.24

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Solution

The fourth proportional to 399,667.04, 599,486.72 and 100,150.24 is: 150,221.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,667.04 : 599,486.72 = 100,150.24 : x
  2. Step 2: Convert to fraction form
    399,667.04/599,486.72 = 100,150.24/x
  3. Step 3: Cross multiply
    399,667.04x = 599,486.72 × 100,150.24
  4. Step 4: Simplify right side
    399,667.04x = 60,038,738,884.81
  5. Step 5: Solve for x
    x = 60,038,738,884.81/399,667.04
  6. Step 6: Final answer
    x = 150,221.89

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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.