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Finding the Fourth Proportional to 238,989.87, 329,803.74 and 131,557.14

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Solution

The fourth proportional to 238,989.87, 329,803.74 and 131,557.14 is: 181,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,989.87 : 329,803.74 = 131,557.14 : x
  2. Step 2: Convert to fraction form
    238,989.87/329,803.74 = 131,557.14/x
  3. Step 3: Cross multiply
    238,989.87x = 329,803.74 × 131,557.14
  4. Step 4: Simplify right side
    238,989.87x = 43,388,036,795.70
  5. Step 5: Solve for x
    x = 43,388,036,795.70/238,989.87
  6. Step 6: Final answer
    x = 181,547.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.