Home / 245,005.97-368,948.01-213,788.36

Finding the Fourth Proportional to 245,005.97, 368,948.01 and 213,788.36

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Solution

The fourth proportional to 245,005.97, 368,948.01 and 213,788.36 is: 321,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,005.97 : 368,948.01 = 213,788.36 : x
  2. Step 2: Convert to fraction form
    245,005.97/368,948.01 = 213,788.36/x
  3. Step 3: Cross multiply
    245,005.97x = 368,948.01 × 213,788.36
  4. Step 4: Simplify right side
    245,005.97x = 78,876,791,707.24
  5. Step 5: Solve for x
    x = 78,876,791,707.24/245,005.97
  6. Step 6: Final answer
    x = 321,938.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.