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Finding the Fourth Proportional to 360,439.11, 540,816.81 and 171,036.39

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Solution

The fourth proportional to 360,439.11, 540,816.81 and 171,036.39 is: 256,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,439.11 : 540,816.81 = 171,036.39 : x
  2. Step 2: Convert to fraction form
    360,439.11/540,816.81 = 171,036.39/x
  3. Step 3: Cross multiply
    360,439.11x = 540,816.81 × 171,036.39
  4. Step 4: Simplify right side
    360,439.11x = 92,499,354,833.72
  5. Step 5: Solve for x
    x = 92,499,354,833.72/360,439.11
  6. Step 6: Final answer
    x = 256,629.63

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1.5x scale

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.