Home / 340,972.84-470,744.14-303,142.42

Finding the Fourth Proportional to 340,972.84, 470,744.14 and 303,142.42

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Solution

The fourth proportional to 340,972.84, 470,744.14 and 303,142.42 is: 418,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,972.84 : 470,744.14 = 303,142.42 : x
  2. Step 2: Convert to fraction form
    340,972.84/470,744.14 = 303,142.42/x
  3. Step 3: Cross multiply
    340,972.84x = 470,744.14 × 303,142.42
  4. Step 4: Simplify right side
    340,972.84x = 142,702,517,800.42
  5. Step 5: Solve for x
    x = 142,702,517,800.42/340,972.84
  6. Step 6: Final answer
    x = 418,515.79

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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.