Home / 278,990.12-382,498.74-273,945.58

Finding the Fourth Proportional to 278,990.12, 382,498.74 and 273,945.58

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Solution

The fourth proportional to 278,990.12, 382,498.74 and 273,945.58 is: 375,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,990.12 : 382,498.74 = 273,945.58 : x
  2. Step 2: Convert to fraction form
    278,990.12/382,498.74 = 273,945.58/x
  3. Step 3: Cross multiply
    278,990.12x = 382,498.74 × 273,945.58
  4. Step 4: Simplify right side
    278,990.12x = 104,783,840,901.77
  5. Step 5: Solve for x
    x = 104,783,840,901.77/278,990.12
  6. Step 6: Final answer
    x = 375,582.62

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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.