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Finding the Fourth Proportional to 356,304.49, 534,456.60 and 143,072.34

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Solution

The fourth proportional to 356,304.49, 534,456.60 and 143,072.34 is: 214,608.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,304.49 : 534,456.60 = 143,072.34 : x
  2. Step 2: Convert to fraction form
    356,304.49/534,456.60 = 143,072.34/x
  3. Step 3: Cross multiply
    356,304.49x = 534,456.60 × 143,072.34
  4. Step 4: Simplify right side
    356,304.49x = 76,465,956,390.44
  5. Step 5: Solve for x
    x = 76,465,956,390.44/356,304.49
  6. Step 6: Final answer
    x = 214,608.46

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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.