Home / 320,771.36-442,615.16-184,778.75

Finding the Fourth Proportional to 320,771.36, 442,615.16 and 184,778.75

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Solution

The fourth proportional to 320,771.36, 442,615.16 and 184,778.75 is: 254,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,771.36 : 442,615.16 = 184,778.75 : x
  2. Step 2: Convert to fraction form
    320,771.36/442,615.16 = 184,778.75/x
  3. Step 3: Cross multiply
    320,771.36x = 442,615.16 × 184,778.75
  4. Step 4: Simplify right side
    320,771.36x = 81,785,872,858.88
  5. Step 5: Solve for x
    x = 81,785,872,858.88/320,771.36
  6. Step 6: Final answer
    x = 254,966.26

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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.