Home / 270,436.80-405,721.64-92,946.36

Finding the Fourth Proportional to 270,436.80, 405,721.64 and 92,946.36

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Solution

The fourth proportional to 270,436.80, 405,721.64 and 92,946.36 is: 139,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,436.80 : 405,721.64 = 92,946.36 : x
  2. Step 2: Convert to fraction form
    270,436.80/405,721.64 = 92,946.36/x
  3. Step 3: Cross multiply
    270,436.80x = 405,721.64 × 92,946.36
  4. Step 4: Simplify right side
    270,436.80x = 37,710,349,611.23
  5. Step 5: Solve for x
    x = 37,710,349,611.23/270,436.80
  6. Step 6: Final answer
    x = 139,442.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.