Home / 286,336.40-395,157.36-159,012.56

Finding the Fourth Proportional to 286,336.40, 395,157.36 and 159,012.56

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Solution

The fourth proportional to 286,336.40, 395,157.36 and 159,012.56 is: 219,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,336.40 : 395,157.36 = 159,012.56 : x
  2. Step 2: Convert to fraction form
    286,336.40/395,157.36 = 159,012.56/x
  3. Step 3: Cross multiply
    286,336.40x = 395,157.36 × 159,012.56
  4. Step 4: Simplify right side
    286,336.40x = 62,834,983,416.44
  5. Step 5: Solve for x
    x = 62,834,983,416.44/286,336.40
  6. Step 6: Final answer
    x = 219,444.62

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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.