Home / 385,462.14-531,912.06-213,368.46

Finding the Fourth Proportional to 385,462.14, 531,912.06 and 213,368.46

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Solution

The fourth proportional to 385,462.14, 531,912.06 and 213,368.46 is: 294,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,462.14 : 531,912.06 = 213,368.46 : x
  2. Step 2: Convert to fraction form
    385,462.14/531,912.06 = 213,368.46/x
  3. Step 3: Cross multiply
    385,462.14x = 531,912.06 × 213,368.46
  4. Step 4: Simplify right side
    385,462.14x = 113,493,257,097.63
  5. Step 5: Solve for x
    x = 113,493,257,097.63/385,462.14
  6. Step 6: Final answer
    x = 294,434.25

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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.