Home / 395,260.96-545,456.40-213,968.26

Finding the Fourth Proportional to 395,260.96, 545,456.40 and 213,968.26

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Solution

The fourth proportional to 395,260.96, 545,456.40 and 213,968.26 is: 295,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,260.96 : 545,456.40 = 213,968.26 : x
  2. Step 2: Convert to fraction form
    395,260.96/545,456.40 = 213,968.26/x
  3. Step 3: Cross multiply
    395,260.96x = 545,456.40 × 213,968.26
  4. Step 4: Simplify right side
    395,260.96x = 116,710,356,813.86
  5. Step 5: Solve for x
    x = 116,710,356,813.86/395,260.96
  6. Step 6: Final answer
    x = 295,274.18

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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.