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Finding the Fourth Proportional to 253,990.67, 380,238.65 and 169,541.37

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Solution

The fourth proportional to 253,990.67, 380,238.65 and 169,541.37 is: 253,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,990.67 : 380,238.65 = 169,541.37 : x
  2. Step 2: Convert to fraction form
    253,990.67/380,238.65 = 169,541.37/x
  3. Step 3: Cross multiply
    253,990.67x = 380,238.65 × 169,541.37
  4. Step 4: Simplify right side
    253,990.67x = 64,466,182,389.69
  5. Step 5: Solve for x
    x = 64,466,182,389.69/253,990.67
  6. Step 6: Final answer
    x = 253,813.19

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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.