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Finding the Fourth Proportional to 286,293.44, 395,097 and 158,980.88

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Solution

The fourth proportional to 286,293.44, 395,097 and 158,980.88 is: 219,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,293.44 : 395,097 = 158,980.88 : x
  2. Step 2: Convert to fraction form
    286,293.44/395,097 = 158,980.88/x
  3. Step 3: Cross multiply
    286,293.44x = 395,097 × 158,980.88
  4. Step 4: Simplify right side
    286,293.44x = 62,812,868,745.36
  5. Step 5: Solve for x
    x = 62,812,868,745.36/286,293.44
  6. Step 6: Final answer
    x = 219,400.31

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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.