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Finding the Fourth Proportional to 351,457.18, 485,010.18 and 190,311.73

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Solution

The fourth proportional to 351,457.18, 485,010.18 and 190,311.73 is: 262,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,457.18 : 485,010.18 = 190,311.73 : x
  2. Step 2: Convert to fraction form
    351,457.18/485,010.18 = 190,311.73/x
  3. Step 3: Cross multiply
    351,457.18x = 485,010.18 × 190,311.73
  4. Step 4: Simplify right side
    351,457.18x = 92,303,125,210.89
  5. Step 5: Solve for x
    x = 92,303,125,210.89/351,457.18
  6. Step 6: Final answer
    x = 262,629.79

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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.