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Finding the Fourth Proportional to 355,359.59, 490,348.98 and 228,207.41

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Solution

The fourth proportional to 355,359.59, 490,348.98 and 228,207.41 is: 314,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,359.59 : 490,348.98 = 228,207.41 : x
  2. Step 2: Convert to fraction form
    355,359.59/490,348.98 = 228,207.41/x
  3. Step 3: Cross multiply
    355,359.59x = 490,348.98 × 228,207.41
  4. Step 4: Simplify right side
    355,359.59x = 111,901,270,721.94
  5. Step 5: Solve for x
    x = 111,901,270,721.94/355,359.59
  6. Step 6: Final answer
    x = 314,895.88

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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.