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Finding the Fourth Proportional to 253,885.49, 380,266.67 and 103,670.26

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Solution

The fourth proportional to 253,885.49, 380,266.67 and 103,670.26 is: 155,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,885.49 : 380,266.67 = 103,670.26 : x
  2. Step 2: Convert to fraction form
    253,885.49/380,266.67 = 103,670.26/x
  3. Step 3: Cross multiply
    253,885.49x = 380,266.67 × 103,670.26
  4. Step 4: Simplify right side
    253,885.49x = 39,422,344,548.23
  5. Step 5: Solve for x
    x = 39,422,344,548.23/253,885.49
  6. Step 6: Final answer
    x = 155,276.08

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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.