Home / 395,100.08-545,239.47-213,811.95

Finding the Fourth Proportional to 395,100.08, 545,239.47 and 213,811.95

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Solution

The fourth proportional to 395,100.08, 545,239.47 and 213,811.95 is: 295,061.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,100.08 : 545,239.47 = 213,811.95 : x
  2. Step 2: Convert to fraction form
    395,100.08/545,239.47 = 213,811.95/x
  3. Step 3: Cross multiply
    395,100.08x = 545,239.47 × 213,811.95
  4. Step 4: Simplify right side
    395,100.08x = 116,578,714,297.67
  5. Step 5: Solve for x
    x = 116,578,714,297.67/395,100.08
  6. Step 6: Final answer
    x = 295,061.23

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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.