Home / 414,097.20-621,145.80-133,614.45

Finding the Fourth Proportional to 414,097.20, 621,145.80 and 133,614.45

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Solution

The fourth proportional to 414,097.20, 621,145.80 and 133,614.45 is: 200,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,097.20 : 621,145.80 = 133,614.45 : x
  2. Step 2: Convert to fraction form
    414,097.20/621,145.80 = 133,614.45/x
  3. Step 3: Cross multiply
    414,097.20x = 621,145.80 × 133,614.45
  4. Step 4: Simplify right side
    414,097.20x = 82,994,054,436.81
  5. Step 5: Solve for x
    x = 82,994,054,436.81/414,097.20
  6. Step 6: Final answer
    x = 200,421.68

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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.