Home / 385,437.16-531,896.85-213,351.44

Finding the Fourth Proportional to 385,437.16, 531,896.85 and 213,351.44

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Solution

The fourth proportional to 385,437.16, 531,896.85 and 213,351.44 is: 294,421.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,437.16 : 531,896.85 = 213,351.44 : x
  2. Step 2: Convert to fraction form
    385,437.16/531,896.85 = 213,351.44/x
  3. Step 3: Cross multiply
    385,437.16x = 531,896.85 × 213,351.44
  4. Step 4: Simplify right side
    385,437.16x = 113,480,958,878.96
  5. Step 5: Solve for x
    x = 113,480,958,878.96/385,437.16
  6. Step 6: Final answer
    x = 294,421.43

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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.