Home / 184,218.40-276,327.60-128,231.20

Finding the Fourth Proportional to 184,218.40, 276,327.60 and 128,231.20

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Solution

The fourth proportional to 184,218.40, 276,327.60 and 128,231.20 is: 192,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,218.40 : 276,327.60 = 128,231.20 : x
  2. Step 2: Convert to fraction form
    184,218.40/276,327.60 = 128,231.20/x
  3. Step 3: Cross multiply
    184,218.40x = 276,327.60 × 128,231.20
  4. Step 4: Simplify right side
    184,218.40x = 35,433,819,741.12
  5. Step 5: Solve for x
    x = 35,433,819,741.12/184,218.40
  6. Step 6: Final answer
    x = 192,346.80

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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.