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Finding the Fourth Proportional to 358,677.90, 494,956.53 and 205,708.19

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Solution

The fourth proportional to 358,677.90, 494,956.53 and 205,708.19 is: 283,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,677.90 : 494,956.53 = 205,708.19 : x
  2. Step 2: Convert to fraction form
    358,677.90/494,956.53 = 205,708.19/x
  3. Step 3: Cross multiply
    358,677.90x = 494,956.53 × 205,708.19
  4. Step 4: Simplify right side
    358,677.90x = 101,816,609,440.20
  5. Step 5: Solve for x
    x = 101,816,609,440.20/358,677.90
  6. Step 6: Final answer
    x = 283,866.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.