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Finding the Fourth Proportional to 162,274.64, 243,383.88 and 43,918.34

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Solution

The fourth proportional to 162,274.64, 243,383.88 and 43,918.34 is: 65,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,274.64 : 243,383.88 = 43,918.34 : x
  2. Step 2: Convert to fraction form
    162,274.64/243,383.88 = 43,918.34/x
  3. Step 3: Cross multiply
    162,274.64x = 243,383.88 × 43,918.34
  4. Step 4: Simplify right side
    162,274.64x = 10,689,015,992.36
  5. Step 5: Solve for x
    x = 10,689,015,992.36/162,274.64
  6. Step 6: Final answer
    x = 65,869.91

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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.