Home / 395,113.11-545,257.06-213,826.36

Finding the Fourth Proportional to 395,113.11, 545,257.06 and 213,826.36

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Solution

The fourth proportional to 395,113.11, 545,257.06 and 213,826.36 is: 295,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,113.11 : 545,257.06 = 213,826.36 : x
  2. Step 2: Convert to fraction form
    395,113.11/545,257.06 = 213,826.36/x
  3. Step 3: Cross multiply
    395,113.11x = 545,257.06 × 213,826.36
  4. Step 4: Simplify right side
    395,113.11x = 116,590,333,798.98
  5. Step 5: Solve for x
    x = 116,590,333,798.98/395,113.11
  6. Step 6: Final answer
    x = 295,080.90

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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.