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Finding the Fourth Proportional to 385,313.05, 531,945.73 and 232,389.81

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Solution

The fourth proportional to 385,313.05, 531,945.73 and 232,389.81 is: 320,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,313.05 : 531,945.73 = 232,389.81 : x
  2. Step 2: Convert to fraction form
    385,313.05/531,945.73 = 232,389.81/x
  3. Step 3: Cross multiply
    385,313.05x = 531,945.73 × 232,389.81
  4. Step 4: Simplify right side
    385,313.05x = 123,618,767,415.50
  5. Step 5: Solve for x
    x = 123,618,767,415.50/385,313.05
  6. Step 6: Final answer
    x = 320,826.84

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