Home / 388,702.27-536,427.40-227,609.22

Finding the Fourth Proportional to 388,702.27, 536,427.40 and 227,609.22

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Solution

The fourth proportional to 388,702.27, 536,427.40 and 227,609.22 is: 314,111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,702.27 : 536,427.40 = 227,609.22 : x
  2. Step 2: Convert to fraction form
    388,702.27/536,427.40 = 227,609.22/x
  3. Step 3: Cross multiply
    388,702.27x = 536,427.40 × 227,609.22
  4. Step 4: Simplify right side
    388,702.27x = 122,095,821,958.37
  5. Step 5: Solve for x
    x = 122,095,821,958.37/388,702.27
  6. Step 6: Final answer
    x = 314,111.42

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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.