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Finding the Fourth Proportional to 355,352.59, 490,339.33 and 228,200.41

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Solution

The fourth proportional to 355,352.59, 490,339.33 and 228,200.41 is: 314,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,352.59 : 490,339.33 = 228,200.41 : x
  2. Step 2: Convert to fraction form
    355,352.59/490,339.33 = 228,200.41/x
  3. Step 3: Cross multiply
    355,352.59x = 490,339.33 × 228,200.41
  4. Step 4: Simplify right side
    355,352.59x = 111,895,636,145.13
  5. Step 5: Solve for x
    x = 111,895,636,145.13/355,352.59
  6. Step 6: Final answer
    x = 314,886.23

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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.