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Finding the Fourth Proportional to 355,297.59, 490,263.44 and 228,145.41

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Solution

The fourth proportional to 355,297.59, 490,263.44 and 228,145.41 is: 314,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,297.59 : 490,263.44 = 228,145.41 : x
  2. Step 2: Convert to fraction form
    355,297.59/490,263.44 = 228,145.41/x
  3. Step 3: Cross multiply
    355,297.59x = 490,263.44 × 228,145.41
  4. Step 4: Simplify right side
    355,297.59x = 111,851,352,386.08
  5. Step 5: Solve for x
    x = 111,851,352,386.08/355,297.59
  6. Step 6: Final answer
    x = 314,810.33

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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.