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Finding the Fourth Proportional to 281,880.40, 423,857.40 and 236,261.20

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Solution

The fourth proportional to 281,880.40, 423,857.40 and 236,261.20 is: 355,260.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,880.40 : 423,857.40 = 236,261.20 : x
  2. Step 2: Convert to fraction form
    281,880.40/423,857.40 = 236,261.20/x
  3. Step 3: Cross multiply
    281,880.40x = 423,857.40 × 236,261.20
  4. Step 4: Simplify right side
    281,880.40x = 100,141,057,952.88
  5. Step 5: Solve for x
    x = 100,141,057,952.88/281,880.40
  6. Step 6: Final answer
    x = 355,260.81

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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.