Home / 405,286.28-559,277.64-223,988.84

Finding the Fourth Proportional to 405,286.28, 559,277.64 and 223,988.84

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Solution

The fourth proportional to 405,286.28, 559,277.64 and 223,988.84 is: 309,094.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,286.28 : 559,277.64 = 223,988.84 : x
  2. Step 2: Convert to fraction form
    405,286.28/559,277.64 = 223,988.84/x
  3. Step 3: Cross multiply
    405,286.28x = 559,277.64 × 223,988.84
  4. Step 4: Simplify right side
    405,286.28x = 125,271,949,821.54
  5. Step 5: Solve for x
    x = 125,271,949,821.54/405,286.28
  6. Step 6: Final answer
    x = 309,094.97

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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.