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Finding the Fourth Proportional to 281,882.40, 423,860.40 and 236,263.20

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Solution

The fourth proportional to 281,882.40, 423,860.40 and 236,263.20 is: 355,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,882.40 : 423,860.40 = 236,263.20 : x
  2. Step 2: Convert to fraction form
    281,882.40/423,860.40 = 236,263.20/x
  3. Step 3: Cross multiply
    281,882.40x = 423,860.40 × 236,263.20
  4. Step 4: Simplify right side
    281,882.40x = 100,142,614,457.28
  5. Step 5: Solve for x
    x = 100,142,614,457.28/281,882.40
  6. Step 6: Final answer
    x = 355,263.81

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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.