Home / 395,974.86-546,438.60-223,890.17

Finding the Fourth Proportional to 395,974.86, 546,438.60 and 223,890.17

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Solution

The fourth proportional to 395,974.86, 546,438.60 and 223,890.17 is: 308,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,974.86 : 546,438.60 = 223,890.17 : x
  2. Step 2: Convert to fraction form
    395,974.86/546,438.60 = 223,890.17/x
  3. Step 3: Cross multiply
    395,974.86x = 546,438.60 × 223,890.17
  4. Step 4: Simplify right side
    395,974.86x = 122,342,228,316.37
  5. Step 5: Solve for x
    x = 122,342,228,316.37/395,974.86
  6. Step 6: Final answer
    x = 308,964.64

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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.