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Finding the Fourth Proportional to 289,476.18, 399,499.29 and 182,138.22

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Solution

The fourth proportional to 289,476.18, 399,499.29 and 182,138.22 is: 251,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,476.18 : 399,499.29 = 182,138.22 : x
  2. Step 2: Convert to fraction form
    289,476.18/399,499.29 = 182,138.22/x
  3. Step 3: Cross multiply
    289,476.18x = 399,499.29 × 182,138.22
  4. Step 4: Simplify right side
    289,476.18x = 72,764,089,571.86
  5. Step 5: Solve for x
    x = 72,764,089,571.86/289,476.18
  6. Step 6: Final answer
    x = 251,364.69

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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.