Home / 288,378.07-395,071.32-277,596.43

Finding the Fourth Proportional to 288,378.07, 395,071.32 and 277,596.43

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Solution

The fourth proportional to 288,378.07, 395,071.32 and 277,596.43 is: 380,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,378.07 : 395,071.32 = 277,596.43 : x
  2. Step 2: Convert to fraction form
    288,378.07/395,071.32 = 277,596.43/x
  3. Step 3: Cross multiply
    288,378.07x = 395,071.32 × 277,596.43
  4. Step 4: Simplify right side
    288,378.07x = 109,670,388,027.39
  5. Step 5: Solve for x
    x = 109,670,388,027.39/288,378.07
  6. Step 6: Final answer
    x = 380,300.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.