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Finding the Fourth Proportional to 262,838.40, 394,214.46 and 73,311.66

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Solution

The fourth proportional to 262,838.40, 394,214.46 and 73,311.66 is: 109,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,838.40 : 394,214.46 = 73,311.66 : x
  2. Step 2: Convert to fraction form
    262,838.40/394,214.46 = 73,311.66/x
  3. Step 3: Cross multiply
    262,838.40x = 394,214.46 × 73,311.66
  4. Step 4: Simplify right side
    262,838.40x = 28,900,516,458.60
  5. Step 5: Solve for x
    x = 28,900,516,458.60/262,838.40
  6. Step 6: Final answer
    x = 109,955.46

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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.