Home / 380,403.48-524,956-219,257.44

Finding the Fourth Proportional to 380,403.48, 524,956 and 219,257.44

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Solution

The fourth proportional to 380,403.48, 524,956 and 219,257.44 is: 302,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,403.48 : 524,956 = 219,257.44 : x
  2. Step 2: Convert to fraction form
    380,403.48/524,956 = 219,257.44/x
  3. Step 3: Cross multiply
    380,403.48x = 524,956 × 219,257.44
  4. Step 4: Simplify right side
    380,403.48x = 115,100,508,672.64
  5. Step 5: Solve for x
    x = 115,100,508,672.64/380,403.48
  6. Step 6: Final answer
    x = 302,574.80

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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.