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Finding the Fourth Proportional to 546,654.80, 820,135.80 and 266,181.20

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Solution

The fourth proportional to 546,654.80, 820,135.80 and 266,181.20 is: 399,346.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,654.80 : 820,135.80 = 266,181.20 : x
  2. Step 2: Convert to fraction form
    546,654.80/820,135.80 = 266,181.20/x
  3. Step 3: Cross multiply
    546,654.80x = 820,135.80 × 266,181.20
  4. Step 4: Simplify right side
    546,654.80x = 218,304,731,406.96
  5. Step 5: Solve for x
    x = 218,304,731,406.96/546,654.80
  6. Step 6: Final answer
    x = 399,346.59

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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.