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Finding the Fourth Proportional to 253,888.49, 380,271.17 and 103,673.26

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Solution

The fourth proportional to 253,888.49, 380,271.17 and 103,673.26 is: 155,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,888.49 : 380,271.17 = 103,673.26 : x
  2. Step 2: Convert to fraction form
    253,888.49/380,271.17 = 103,673.26/x
  3. Step 3: Cross multiply
    253,888.49x = 380,271.17 × 103,673.26
  4. Step 4: Simplify right side
    253,888.49x = 39,423,951,877.91
  5. Step 5: Solve for x
    x = 39,423,951,877.91/253,888.49
  6. Step 6: Final answer
    x = 155,280.58

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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.