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Finding the Fourth Proportional to 262,671.70, 394,041.60 and 120,482.68

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Solution

The fourth proportional to 262,671.70, 394,041.60 and 120,482.68 is: 180,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,671.70 : 394,041.60 = 120,482.68 : x
  2. Step 2: Convert to fraction form
    262,671.70/394,041.60 = 120,482.68/x
  3. Step 3: Cross multiply
    262,671.70x = 394,041.60 × 120,482.68
  4. Step 4: Simplify right side
    262,671.70x = 47,475,187,999.49
  5. Step 5: Solve for x
    x = 47,475,187,999.49/262,671.70
  6. Step 6: Final answer
    x = 180,739.64

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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.