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Finding the Fourth Proportional to 218,238.12, 301,061.88 and 133,207.56

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Solution

The fourth proportional to 218,238.12, 301,061.88 and 133,207.56 is: 183,761.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,238.12 : 301,061.88 = 133,207.56 : x
  2. Step 2: Convert to fraction form
    218,238.12/301,061.88 = 133,207.56/x
  3. Step 3: Cross multiply
    218,238.12x = 301,061.88 × 133,207.56
  4. Step 4: Simplify right side
    218,238.12x = 40,103,718,443.81
  5. Step 5: Solve for x
    x = 40,103,718,443.81/218,238.12
  6. Step 6: Final answer
    x = 183,761.29

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