Home / 401,087.30-553,507.83-219,788.64

Finding the Fourth Proportional to 401,087.30, 553,507.83 and 219,788.64

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Solution

The fourth proportional to 401,087.30, 553,507.83 and 219,788.64 is: 303,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,087.30 : 553,507.83 = 219,788.64 : x
  2. Step 2: Convert to fraction form
    401,087.30/553,507.83 = 219,788.64/x
  3. Step 3: Cross multiply
    401,087.30x = 553,507.83 × 219,788.64
  4. Step 4: Simplify right side
    401,087.30x = 121,654,733,185.05
  5. Step 5: Solve for x
    x = 121,654,733,185.05/401,087.30
  6. Step 6: Final answer
    x = 303,312.36

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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.