Home / 385,028.27-531,125.72-223,865.51

Finding the Fourth Proportional to 385,028.27, 531,125.72 and 223,865.51

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Solution

The fourth proportional to 385,028.27, 531,125.72 and 223,865.51 is: 308,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,028.27 : 531,125.72 = 223,865.51 : x
  2. Step 2: Convert to fraction form
    385,028.27/531,125.72 = 223,865.51/x
  3. Step 3: Cross multiply
    385,028.27x = 531,125.72 × 223,865.51
  4. Step 4: Simplify right side
    385,028.27x = 118,900,730,181.92
  5. Step 5: Solve for x
    x = 118,900,730,181.92/385,028.27
  6. Step 6: Final answer
    x = 308,810.39

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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.