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Finding the Fourth Proportional to 384,900.80, 576,257.70 and 363,954.20

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Solution

The fourth proportional to 384,900.80, 576,257.70 and 363,954.20 is: 544,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,900.80 : 576,257.70 = 363,954.20 : x
  2. Step 2: Convert to fraction form
    384,900.80/576,257.70 = 363,954.20/x
  3. Step 3: Cross multiply
    384,900.80x = 576,257.70 × 363,954.20
  4. Step 4: Simplify right side
    384,900.80x = 209,731,410,197.34
  5. Step 5: Solve for x
    x = 209,731,410,197.34/384,900.80
  6. Step 6: Final answer
    x = 544,897.31

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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.