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Finding the Fourth Proportional to 145,687.44, 218,478.42 and 50,891.16

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Solution

The fourth proportional to 145,687.44, 218,478.42 and 50,891.16 is: 76,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,687.44 : 218,478.42 = 50,891.16 : x
  2. Step 2: Convert to fraction form
    145,687.44/218,478.42 = 50,891.16/x
  3. Step 3: Cross multiply
    145,687.44x = 218,478.42 × 50,891.16
  4. Step 4: Simplify right side
    145,687.44x = 11,118,620,228.77
  5. Step 5: Solve for x
    x = 11,118,620,228.77/145,687.44
  6. Step 6: Final answer
    x = 76,318.32

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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.