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Finding the Fourth Proportional to 602,449.48, 903,121.26 and 208,189

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Solution

The fourth proportional to 602,449.48, 903,121.26 and 208,189 is: 312,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,449.48 : 903,121.26 = 208,189 : x
  2. Step 2: Convert to fraction form
    602,449.48/903,121.26 = 208,189/x
  3. Step 3: Cross multiply
    602,449.48x = 903,121.26 × 208,189
  4. Step 4: Simplify right side
    602,449.48x = 188,019,911,998.14
  5. Step 5: Solve for x
    x = 188,019,911,998.14/602,449.48
  6. Step 6: Final answer
    x = 312,092.41

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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.