Home / 278,431.14-384,213.69-163,714.44

Finding the Fourth Proportional to 278,431.14, 384,213.69 and 163,714.44

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Solution

The fourth proportional to 278,431.14, 384,213.69 and 163,714.44 is: 225,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,431.14 : 384,213.69 = 163,714.44 : x
  2. Step 2: Convert to fraction form
    278,431.14/384,213.69 = 163,714.44/x
  3. Step 3: Cross multiply
    278,431.14x = 384,213.69 × 163,714.44
  4. Step 4: Simplify right side
    278,431.14x = 62,901,329,098.68
  5. Step 5: Solve for x
    x = 62,901,329,098.68/278,431.14
  6. Step 6: Final answer
    x = 225,913.41

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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.