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Finding the Fourth Proportional to 351,466.76, 485,023.25 and 190,321.81

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Solution

The fourth proportional to 351,466.76, 485,023.25 and 190,321.81 is: 262,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,466.76 : 485,023.25 = 190,321.81 : x
  2. Step 2: Convert to fraction form
    351,466.76/485,023.25 = 190,321.81/x
  3. Step 3: Cross multiply
    351,466.76x = 485,023.25 × 190,321.81
  4. Step 4: Simplify right side
    351,466.76x = 92,310,502,095.33
  5. Step 5: Solve for x
    x = 92,310,502,095.33/351,466.76
  6. Step 6: Final answer
    x = 262,643.62

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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.