Home / 385,032.26-531,131.25-223,869.50

Finding the Fourth Proportional to 385,032.26, 531,131.25 and 223,869.50

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Solution

The fourth proportional to 385,032.26, 531,131.25 and 223,869.50 is: 308,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,032.26 : 531,131.25 = 223,869.50 : x
  2. Step 2: Convert to fraction form
    385,032.26/531,131.25 = 223,869.50/x
  3. Step 3: Cross multiply
    385,032.26x = 531,131.25 × 223,869.50
  4. Step 4: Simplify right side
    385,032.26x = 118,904,087,371.88
  5. Step 5: Solve for x
    x = 118,904,087,371.88/385,032.26
  6. Step 6: Final answer
    x = 308,815.91

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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.