Home / 395,256.51-545,450.76-213,964.74

Finding the Fourth Proportional to 395,256.51, 545,450.76 and 213,964.74

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Solution

The fourth proportional to 395,256.51, 545,450.76 and 213,964.74 is: 295,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,256.51 : 545,450.76 = 213,964.74 : x
  2. Step 2: Convert to fraction form
    395,256.51/545,450.76 = 213,964.74/x
  3. Step 3: Cross multiply
    395,256.51x = 545,450.76 × 213,964.74
  4. Step 4: Simplify right side
    395,256.51x = 116,707,230,046.20
  5. Step 5: Solve for x
    x = 116,707,230,046.20/395,256.51
  6. Step 6: Final answer
    x = 295,269.60

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1.5x scale

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.