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Finding the Fourth Proportional to 355,760.76, 491,066.48 and 255,450.36

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Solution

The fourth proportional to 355,760.76, 491,066.48 and 255,450.36 is: 352,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,760.76 : 491,066.48 = 255,450.36 : x
  2. Step 2: Convert to fraction form
    355,760.76/491,066.48 = 255,450.36/x
  3. Step 3: Cross multiply
    355,760.76x = 491,066.48 × 255,450.36
  4. Step 4: Simplify right side
    355,760.76x = 125,443,109,099.93
  5. Step 5: Solve for x
    x = 125,443,109,099.93/355,760.76
  6. Step 6: Final answer
    x = 352,605.24

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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.