Home / 380,923.11-525,538.40-219,818.97

Finding the Fourth Proportional to 380,923.11, 525,538.40 and 219,818.97

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Solution

The fourth proportional to 380,923.11, 525,538.40 and 219,818.97 is: 303,271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,923.11 : 525,538.40 = 219,818.97 : x
  2. Step 2: Convert to fraction form
    380,923.11/525,538.40 = 219,818.97/x
  3. Step 3: Cross multiply
    380,923.11x = 525,538.40 × 219,818.97
  4. Step 4: Simplify right side
    380,923.11x = 115,523,308,684.35
  5. Step 5: Solve for x
    x = 115,523,308,684.35/380,923.11
  6. Step 6: Final answer
    x = 303,271.99

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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.