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Finding the Fourth Proportional to 262,621, 361,367.18 and 255,272.68

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Solution

The fourth proportional to 262,621, 361,367.18 and 255,272.68 is: 351,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,621 : 361,367.18 = 255,272.68 : x
  2. Step 2: Convert to fraction form
    262,621/361,367.18 = 255,272.68/x
  3. Step 3: Cross multiply
    262,621x = 361,367.18 × 255,272.68
  4. Step 4: Simplify right side
    262,621x = 92,247,168,502.64
  5. Step 5: Solve for x
    x = 92,247,168,502.64/262,621
  6. Step 6: Final answer
    x = 351,255.87

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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.