Home / 395,170.24-545,339.28-225,414.40

Finding the Fourth Proportional to 395,170.24, 545,339.28 and 225,414.40

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Solution

The fourth proportional to 395,170.24, 545,339.28 and 225,414.40 is: 311,074.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,170.24 : 545,339.28 = 225,414.40 : x
  2. Step 2: Convert to fraction form
    395,170.24/545,339.28 = 225,414.40/x
  3. Step 3: Cross multiply
    395,170.24x = 545,339.28 × 225,414.40
  4. Step 4: Simplify right side
    395,170.24x = 122,927,326,597.63
  5. Step 5: Solve for x
    x = 122,927,326,597.63/395,170.24
  6. Step 6: Final answer
    x = 311,074.35

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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.