Home / 395,280.27-545,345.06-225,415.98

Finding the Fourth Proportional to 395,280.27, 545,345.06 and 225,415.98

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Solution

The fourth proportional to 395,280.27, 545,345.06 and 225,415.98 is: 310,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,280.27 : 545,345.06 = 225,415.98 : x
  2. Step 2: Convert to fraction form
    395,280.27/545,345.06 = 225,415.98/x
  3. Step 3: Cross multiply
    395,280.27x = 545,345.06 × 225,415.98
  4. Step 4: Simplify right side
    395,280.27x = 122,929,490,010.98
  5. Step 5: Solve for x
    x = 122,929,490,010.98/395,280.27
  6. Step 6: Final answer
    x = 310,993.24

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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.