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Finding the Fourth Proportional to 288,372.53, 395,063.77 and 277,590.91

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Solution

The fourth proportional to 288,372.53, 395,063.77 and 277,590.91 is: 380,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,372.53 : 395,063.77 = 277,590.91 : x
  2. Step 2: Convert to fraction form
    288,372.53/395,063.77 = 277,590.91/x
  3. Step 3: Cross multiply
    288,372.53x = 395,063.77 × 277,590.91
  4. Step 4: Simplify right side
    288,372.53x = 109,666,111,422.33
  5. Step 5: Solve for x
    x = 109,666,111,422.33/288,372.53
  6. Step 6: Final answer
    x = 380,293.20

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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.