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Finding the Fourth Proportional to 395,674.37, 546,029.86 and 214,391.21

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Solution

The fourth proportional to 395,674.37, 546,029.86 and 214,391.21 is: 295,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,674.37 : 546,029.86 = 214,391.21 : x
  2. Step 2: Convert to fraction form
    395,674.37/546,029.86 = 214,391.21/x
  3. Step 3: Cross multiply
    395,674.37x = 546,029.86 × 214,391.21
  4. Step 4: Simplify right side
    395,674.37x = 117,064,000,187.36
  5. Step 5: Solve for x
    x = 117,064,000,187.36/395,674.37
  6. Step 6: Final answer
    x = 295,859.45

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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.