Home / 403,212.08-556,422.40-219,442.88

Finding the Fourth Proportional to 403,212.08, 556,422.40 and 219,442.88

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Solution

The fourth proportional to 403,212.08, 556,422.40 and 219,442.88 is: 302,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,212.08 : 556,422.40 = 219,442.88 : x
  2. Step 2: Convert to fraction form
    403,212.08/556,422.40 = 219,442.88/x
  3. Step 3: Cross multiply
    403,212.08x = 556,422.40 × 219,442.88
  4. Step 4: Simplify right side
    403,212.08x = 122,102,933,952.51
  5. Step 5: Solve for x
    x = 122,102,933,952.51/403,212.08
  6. Step 6: Final answer
    x = 302,825.58

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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.