Home / 301,815.06-415,977.57-221,071.02

Finding the Fourth Proportional to 301,815.06, 415,977.57 and 221,071.02

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Solution

The fourth proportional to 301,815.06, 415,977.57 and 221,071.02 is: 304,691.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,815.06 : 415,977.57 = 221,071.02 : x
  2. Step 2: Convert to fraction form
    301,815.06/415,977.57 = 221,071.02/x
  3. Step 3: Cross multiply
    301,815.06x = 415,977.57 × 221,071.02
  4. Step 4: Simplify right side
    301,815.06x = 91,960,585,697.02
  5. Step 5: Solve for x
    x = 91,960,585,697.02/301,815.06
  6. Step 6: Final answer
    x = 304,691.84

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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.