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Finding the Fourth Proportional to 450,202.70, 621,333.31 and 259,253.30

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Solution

The fourth proportional to 450,202.70, 621,333.31 and 259,253.30 is: 357,800.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,202.70 : 621,333.31 = 259,253.30 : x
  2. Step 2: Convert to fraction form
    450,202.70/621,333.31 = 259,253.30/x
  3. Step 3: Cross multiply
    450,202.70x = 621,333.31 × 259,253.30
  4. Step 4: Simplify right side
    450,202.70x = 161,082,711,017.42
  5. Step 5: Solve for x
    x = 161,082,711,017.42/450,202.70
  6. Step 6: Final answer
    x = 357,800.41

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Why These Related Problems?

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