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Finding the Fourth Proportional to 262,620, 361,365.80 and 255,271.68

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Solution

The fourth proportional to 262,620, 361,365.80 and 255,271.68 is: 351,254.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,620 : 361,365.80 = 255,271.68 : x
  2. Step 2: Convert to fraction form
    262,620/361,365.80 = 255,271.68/x
  3. Step 3: Cross multiply
    262,620x = 361,365.80 × 255,271.68
  4. Step 4: Simplify right side
    262,620x = 92,246,454,860.54
  5. Step 5: Solve for x
    x = 92,246,454,860.54/262,620
  6. Step 6: Final answer
    x = 351,254.49

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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.