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Finding the Fourth Proportional to 255,709.43, 353,030.21 and 227,336.60

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Solution

The fourth proportional to 255,709.43, 353,030.21 and 227,336.60 is: 313,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,709.43 : 353,030.21 = 227,336.60 : x
  2. Step 2: Convert to fraction form
    255,709.43/353,030.21 = 227,336.60/x
  3. Step 3: Cross multiply
    255,709.43x = 353,030.21 × 227,336.60
  4. Step 4: Simplify right side
    255,709.43x = 80,256,687,638.69
  5. Step 5: Solve for x
    x = 80,256,687,638.69/255,709.43
  6. Step 6: Final answer
    x = 313,858.93

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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.