Home / 213,467.12-319,914.36-166,139.28

Finding the Fourth Proportional to 213,467.12, 319,914.36 and 166,139.28

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Solution

The fourth proportional to 213,467.12, 319,914.36 and 166,139.28 is: 248,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,467.12 : 319,914.36 = 166,139.28 : x
  2. Step 2: Convert to fraction form
    213,467.12/319,914.36 = 166,139.28/x
  3. Step 3: Cross multiply
    213,467.12x = 319,914.36 × 166,139.28
  4. Step 4: Simplify right side
    213,467.12x = 53,150,341,432.06
  5. Step 5: Solve for x
    x = 53,150,341,432.06/213,467.12
  6. Step 6: Final answer
    x = 248,986.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.