Home / 403,180.75-556,378.24-228,782.72

Finding the Fourth Proportional to 403,180.75, 556,378.24 and 228,782.72

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Solution

The fourth proportional to 403,180.75, 556,378.24 and 228,782.72 is: 315,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,180.75 : 556,378.24 = 228,782.72 : x
  2. Step 2: Convert to fraction form
    403,180.75/556,378.24 = 228,782.72/x
  3. Step 3: Cross multiply
    403,180.75x = 556,378.24 × 228,782.72
  4. Step 4: Simplify right side
    403,180.75x = 127,289,727,096.01
  5. Step 5: Solve for x
    x = 127,289,727,096.01/403,180.75
  6. Step 6: Final answer
    x = 315,713.80

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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.