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Finding the Fourth Proportional to 282,278.88, 389,007.88 and 277,091.34

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Solution

The fourth proportional to 282,278.88, 389,007.88 and 277,091.34 is: 381,858.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,278.88 : 389,007.88 = 277,091.34 : x
  2. Step 2: Convert to fraction form
    282,278.88/389,007.88 = 277,091.34/x
  3. Step 3: Cross multiply
    282,278.88x = 389,007.88 × 277,091.34
  4. Step 4: Simplify right side
    282,278.88x = 107,790,714,739.76
  5. Step 5: Solve for x
    x = 107,790,714,739.76/282,278.88
  6. Step 6: Final answer
    x = 381,858.94

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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.