Home / 278,410.35-384,206.28-151,085.95

Finding the Fourth Proportional to 278,410.35, 384,206.28 and 151,085.95

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Solution

The fourth proportional to 278,410.35, 384,206.28 and 151,085.95 is: 208,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,410.35 : 384,206.28 = 151,085.95 : x
  2. Step 2: Convert to fraction form
    278,410.35/384,206.28 = 151,085.95/x
  3. Step 3: Cross multiply
    278,410.35x = 384,206.28 × 151,085.95
  4. Step 4: Simplify right side
    278,410.35x = 58,048,170,809.77
  5. Step 5: Solve for x
    x = 58,048,170,809.77/278,410.35
  6. Step 6: Final answer
    x = 208,498.61

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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.