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Finding the Fourth Proportional to 336,543.36, 505,008 and 136,826.88

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Solution

The fourth proportional to 336,543.36, 505,008 and 136,826.88 is: 205,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,543.36 : 505,008 = 136,826.88 : x
  2. Step 2: Convert to fraction form
    336,543.36/505,008 = 136,826.88/x
  3. Step 3: Cross multiply
    336,543.36x = 505,008 × 136,826.88
  4. Step 4: Simplify right side
    336,543.36x = 69,098,669,015.04
  5. Step 5: Solve for x
    x = 69,098,669,015.04/336,543.36
  6. Step 6: Final answer
    x = 205,318.77

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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.