Home / 263,210.76-394,991.10-122,980.32

Finding the Fourth Proportional to 263,210.76, 394,991.10 and 122,980.32

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Solution

The fourth proportional to 263,210.76, 394,991.10 and 122,980.32 is: 184,552.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,210.76 : 394,991.10 = 122,980.32 : x
  2. Step 2: Convert to fraction form
    263,210.76/394,991.10 = 122,980.32/x
  3. Step 3: Cross multiply
    263,210.76x = 394,991.10 × 122,980.32
  4. Step 4: Simplify right side
    263,210.76x = 48,576,131,875.15
  5. Step 5: Solve for x
    x = 48,576,131,875.15/263,210.76
  6. Step 6: Final answer
    x = 184,552.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.