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Finding the Fourth Proportional to 323,622.95, 484,133.56 and 279,720.95

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Solution

The fourth proportional to 323,622.95, 484,133.56 and 279,720.95 is: 418,457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,622.95 : 484,133.56 = 279,720.95 : x
  2. Step 2: Convert to fraction form
    323,622.95/484,133.56 = 279,720.95/x
  3. Step 3: Cross multiply
    323,622.95x = 484,133.56 × 279,720.95
  4. Step 4: Simplify right side
    323,622.95x = 135,422,296,210.11
  5. Step 5: Solve for x
    x = 135,422,296,210.11/323,622.95
  6. Step 6: Final answer
    x = 418,457.03

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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.