Home / 395,106.36-545,246.76-213,818.28

Finding the Fourth Proportional to 395,106.36, 545,246.76 and 213,818.28

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Solution

The fourth proportional to 395,106.36, 545,246.76 and 213,818.28 is: 295,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,106.36 : 545,246.76 = 213,818.28 : x
  2. Step 2: Convert to fraction form
    395,106.36/545,246.76 = 213,818.28/x
  3. Step 3: Cross multiply
    395,106.36x = 545,246.76 × 213,818.28
  4. Step 4: Simplify right side
    395,106.36x = 116,583,724,398.77
  5. Step 5: Solve for x
    x = 116,583,724,398.77/395,106.36
  6. Step 6: Final answer
    x = 295,069.22

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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.