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Finding the Fourth Proportional to 288,372.66, 395,063.95 and 277,591.04

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Solution

The fourth proportional to 288,372.66, 395,063.95 and 277,591.04 is: 380,293.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,372.66 : 395,063.95 = 277,591.04 : x
  2. Step 2: Convert to fraction form
    288,372.66/395,063.95 = 277,591.04/x
  3. Step 3: Cross multiply
    288,372.66x = 395,063.95 × 277,591.04
  4. Step 4: Simplify right side
    288,372.66x = 109,666,212,747.01
  5. Step 5: Solve for x
    x = 109,666,212,747.01/288,372.66
  6. Step 6: Final answer
    x = 380,293.38

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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.