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Finding the Fourth Proportional to 336,008.50, 504,022.47 and 86,690.50

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Solution

The fourth proportional to 336,008.50, 504,022.47 and 86,690.50 is: 130,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,008.50 : 504,022.47 = 86,690.50 : x
  2. Step 2: Convert to fraction form
    336,008.50/504,022.47 = 86,690.50/x
  3. Step 3: Cross multiply
    336,008.50x = 504,022.47 × 86,690.50
  4. Step 4: Simplify right side
    336,008.50x = 43,693,959,935.54
  5. Step 5: Solve for x
    x = 43,693,959,935.54/336,008.50
  6. Step 6: Final answer
    x = 130,038.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.