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Finding the Fourth Proportional to 248,911, 373,403.94 and 80,374.84

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Solution

The fourth proportional to 248,911, 373,403.94 and 80,374.84 is: 120,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,911 : 373,403.94 = 80,374.84 : x
  2. Step 2: Convert to fraction form
    248,911/373,403.94 = 80,374.84/x
  3. Step 3: Cross multiply
    248,911x = 373,403.94 × 80,374.84
  4. Step 4: Simplify right side
    248,911x = 30,012,281,932.87
  5. Step 5: Solve for x
    x = 30,012,281,932.87/248,911
  6. Step 6: Final answer
    x = 120,574.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.