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Finding the Fourth Proportional to 380,634.44, 525,331.44 and 219,457.98

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Solution

The fourth proportional to 380,634.44, 525,331.44 and 219,457.98 is: 302,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,634.44 : 525,331.44 = 219,457.98 : x
  2. Step 2: Convert to fraction form
    380,634.44/525,331.44 = 219,457.98/x
  3. Step 3: Cross multiply
    380,634.44x = 525,331.44 × 219,457.98
  4. Step 4: Simplify right side
    380,634.44x = 115,288,176,652.89
  5. Step 5: Solve for x
    x = 115,288,176,652.89/380,634.44
  6. Step 6: Final answer
    x = 302,884.25

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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.