Home / 395,127.15-545,276.13-213,839.24

Finding the Fourth Proportional to 395,127.15, 545,276.13 and 213,839.24

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Solution

The fourth proportional to 395,127.15, 545,276.13 and 213,839.24 is: 295,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,127.15 : 545,276.13 = 213,839.24 : x
  2. Step 2: Convert to fraction form
    395,127.15/545,276.13 = 213,839.24/x
  3. Step 3: Cross multiply
    395,127.15x = 545,276.13 × 213,839.24
  4. Step 4: Simplify right side
    395,127.15x = 116,601,433,369.66
  5. Step 5: Solve for x
    x = 116,601,433,369.66/395,127.15
  6. Step 6: Final answer
    x = 295,098.51

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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.