Home / 380,910.96-525,629.70-208,801.44

Finding the Fourth Proportional to 380,910.96, 525,629.70 and 208,801.44

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Solution

The fourth proportional to 380,910.96, 525,629.70 and 208,801.44 is: 288,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,910.96 : 525,629.70 = 208,801.44 : x
  2. Step 2: Convert to fraction form
    380,910.96/525,629.70 = 208,801.44/x
  3. Step 3: Cross multiply
    380,910.96x = 525,629.70 × 208,801.44
  4. Step 4: Simplify right side
    380,910.96x = 109,752,238,266.77
  5. Step 5: Solve for x
    x = 109,752,238,266.77/380,910.96
  6. Step 6: Final answer
    x = 288,130.95

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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.