Home / 395,192.22-545,368.95-225,436.38

Finding the Fourth Proportional to 395,192.22, 545,368.95 and 225,436.38

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Solution

The fourth proportional to 395,192.22, 545,368.95 and 225,436.38 is: 311,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,192.22 : 545,368.95 = 225,436.38 : x
  2. Step 2: Convert to fraction form
    395,192.22/545,368.95 = 225,436.38/x
  3. Step 3: Cross multiply
    395,192.22x = 545,368.95 × 225,436.38
  4. Step 4: Simplify right side
    395,192.22x = 122,946,001,852.40
  5. Step 5: Solve for x
    x = 122,946,001,852.40/395,192.22
  6. Step 6: Final answer
    x = 311,104.31

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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.