Home / 277,272.30-415,908.50-66,910.25

Finding the Fourth Proportional to 277,272.30, 415,908.50 and 66,910.25

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Solution

The fourth proportional to 277,272.30, 415,908.50 and 66,910.25 is: 100,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,272.30 : 415,908.50 = 66,910.25 : x
  2. Step 2: Convert to fraction form
    277,272.30/415,908.50 = 66,910.25/x
  3. Step 3: Cross multiply
    277,272.30x = 415,908.50 × 66,910.25
  4. Step 4: Simplify right side
    277,272.30x = 27,828,539,298.03
  5. Step 5: Solve for x
    x = 27,828,539,298.03/277,272.30
  6. Step 6: Final answer
    x = 100,365.38

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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.