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Finding the Fourth Proportional to 336,790, 505,400.10 and 159,307.48

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Solution

The fourth proportional to 336,790, 505,400.10 and 159,307.48 is: 239,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,790 : 505,400.10 = 159,307.48 : x
  2. Step 2: Convert to fraction form
    336,790/505,400.10 = 159,307.48/x
  3. Step 3: Cross multiply
    336,790x = 505,400.10 × 159,307.48
  4. Step 4: Simplify right side
    336,790x = 80,514,016,322.75
  5. Step 5: Solve for x
    x = 80,514,016,322.75/336,790
  6. Step 6: Final answer
    x = 239,062.97

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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.