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Finding the Fourth Proportional to 289,476.37, 399,499.55 and 182,138.41

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Solution

The fourth proportional to 289,476.37, 399,499.55 and 182,138.41 is: 251,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,476.37 : 399,499.55 = 182,138.41 : x
  2. Step 2: Convert to fraction form
    289,476.37/399,499.55 = 182,138.41/x
  3. Step 3: Cross multiply
    289,476.37x = 399,499.55 × 182,138.41
  4. Step 4: Simplify right side
    289,476.37x = 72,764,211,606.29
  5. Step 5: Solve for x
    x = 72,764,211,606.29/289,476.37
  6. Step 6: Final answer
    x = 251,364.95

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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.