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Finding the Fourth Proportional to 265,172.50, 397,758.76 and 218,326.96

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Solution

The fourth proportional to 265,172.50, 397,758.76 and 218,326.96 is: 327,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,172.50 : 397,758.76 = 218,326.96 : x
  2. Step 2: Convert to fraction form
    265,172.50/397,758.76 = 218,326.96/x
  3. Step 3: Cross multiply
    265,172.50x = 397,758.76 × 218,326.96
  4. Step 4: Simplify right side
    265,172.50x = 86,841,459,343.96
  5. Step 5: Solve for x
    x = 86,841,459,343.96/265,172.50
  6. Step 6: Final answer
    x = 327,490.45

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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.