Home / 277,749.20-415,967.70-188,519.60

Finding the Fourth Proportional to 277,749.20, 415,967.70 and 188,519.60

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Solution

The fourth proportional to 277,749.20, 415,967.70 and 188,519.60 is: 282,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,749.20 : 415,967.70 = 188,519.60 : x
  2. Step 2: Convert to fraction form
    277,749.20/415,967.70 = 188,519.60/x
  3. Step 3: Cross multiply
    277,749.20x = 415,967.70 × 188,519.60
  4. Step 4: Simplify right side
    277,749.20x = 78,418,064,416.92
  5. Step 5: Solve for x
    x = 78,418,064,416.92/277,749.20
  6. Step 6: Final answer
    x = 282,334.08

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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.