Home / 213,080.36-319,122.62-168,407.40

Finding the Fourth Proportional to 213,080.36, 319,122.62 and 168,407.40

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Solution

The fourth proportional to 213,080.36, 319,122.62 and 168,407.40 is: 252,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,080.36 : 319,122.62 = 168,407.40 : x
  2. Step 2: Convert to fraction form
    213,080.36/319,122.62 = 168,407.40/x
  3. Step 3: Cross multiply
    213,080.36x = 319,122.62 × 168,407.40
  4. Step 4: Simplify right side
    213,080.36x = 53,742,610,715.39
  5. Step 5: Solve for x
    x = 53,742,610,715.39/213,080.36
  6. Step 6: Final answer
    x = 252,217.57

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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.