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Finding the Fourth Proportional to 323,797.95, 485,698.13 and 99,157.51

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Solution

The fourth proportional to 323,797.95, 485,698.13 and 99,157.51 is: 148,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,797.95 : 485,698.13 = 99,157.51 : x
  2. Step 2: Convert to fraction form
    323,797.95/485,698.13 = 99,157.51/x
  3. Step 3: Cross multiply
    323,797.95x = 485,698.13 × 99,157.51
  4. Step 4: Simplify right side
    323,797.95x = 48,160,616,216.10
  5. Step 5: Solve for x
    x = 48,160,616,216.10/323,797.95
  6. Step 6: Final answer
    x = 148,736.63

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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.