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Finding the Fourth Proportional to 318,825.81, 440,019.86 and 182,856.83

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Solution

The fourth proportional to 318,825.81, 440,019.86 and 182,856.83 is: 252,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,825.81 : 440,019.86 = 182,856.83 : x
  2. Step 2: Convert to fraction form
    318,825.81/440,019.86 = 182,856.83/x
  3. Step 3: Cross multiply
    318,825.81x = 440,019.86 × 182,856.83
  4. Step 4: Simplify right side
    318,825.81x = 80,460,636,736.64
  5. Step 5: Solve for x
    x = 80,460,636,736.64/318,825.81
  6. Step 6: Final answer
    x = 252,365.51

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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.