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Finding the Fourth Proportional to 434,305, 599,365.50 and 243,379.90

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Solution

The fourth proportional to 434,305, 599,365.50 and 243,379.90 is: 335,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,305 : 599,365.50 = 243,379.90 : x
  2. Step 2: Convert to fraction form
    434,305/599,365.50 = 243,379.90/x
  3. Step 3: Cross multiply
    434,305x = 599,365.50 × 243,379.90
  4. Step 4: Simplify right side
    434,305x = 145,873,515,453.45
  5. Step 5: Solve for x
    x = 145,873,515,453.45/434,305
  6. Step 6: Final answer
    x = 335,878.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.