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Finding the Fourth Proportional to 259,885.49, 389,127.33 and 169,704.81

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Solution

The fourth proportional to 259,885.49, 389,127.33 and 169,704.81 is: 254,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,885.49 : 389,127.33 = 169,704.81 : x
  2. Step 2: Convert to fraction form
    259,885.49/389,127.33 = 169,704.81/x
  3. Step 3: Cross multiply
    259,885.49x = 389,127.33 × 169,704.81
  4. Step 4: Simplify right side
    259,885.49x = 66,036,779,603.46
  5. Step 5: Solve for x
    x = 66,036,779,603.46/259,885.49
  6. Step 6: Final answer
    x = 254,099.53

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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.