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Finding the Fourth Proportional to 355,200.76, 490,266.44 and 228,097.80

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Solution

The fourth proportional to 355,200.76, 490,266.44 and 228,097.80 is: 314,832.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,200.76 : 490,266.44 = 228,097.80 : x
  2. Step 2: Convert to fraction form
    355,200.76/490,266.44 = 228,097.80/x
  3. Step 3: Cross multiply
    355,200.76x = 490,266.44 × 228,097.80
  4. Step 4: Simplify right side
    355,200.76x = 111,828,696,377.83
  5. Step 5: Solve for x
    x = 111,828,696,377.83/355,200.76
  6. Step 6: Final answer
    x = 314,832.37

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1.5x scale

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.