Home / 208,910.25-288,533.52-140,809.86

Finding the Fourth Proportional to 208,910.25, 288,533.52 and 140,809.86

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Solution

The fourth proportional to 208,910.25, 288,533.52 and 140,809.86 is: 194,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,910.25 : 288,533.52 = 140,809.86 : x
  2. Step 2: Convert to fraction form
    208,910.25/288,533.52 = 140,809.86/x
  3. Step 3: Cross multiply
    208,910.25x = 288,533.52 × 140,809.86
  4. Step 4: Simplify right side
    208,910.25x = 40,628,364,556.51
  5. Step 5: Solve for x
    x = 40,628,364,556.51/208,910.25
  6. Step 6: Final answer
    x = 194,477.60

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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.