Home / 253,370.08-380,081.82-103,586.56

Finding the Fourth Proportional to 253,370.08, 380,081.82 and 103,586.56

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Solution

The fourth proportional to 253,370.08, 380,081.82 and 103,586.56 is: 155,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,370.08 : 380,081.82 = 103,586.56 : x
  2. Step 2: Convert to fraction form
    253,370.08/380,081.82 = 103,586.56/x
  3. Step 3: Cross multiply
    253,370.08x = 380,081.82 × 103,586.56
  4. Step 4: Simplify right side
    253,370.08x = 39,371,368,252.34
  5. Step 5: Solve for x
    x = 39,371,368,252.34/253,370.08
  6. Step 6: Final answer
    x = 155,390.76

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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.