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Finding the Fourth Proportional to 323,425.16, 485,189.58 and 136,464.20

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Solution

The fourth proportional to 323,425.16, 485,189.58 and 136,464.20 is: 204,718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,425.16 : 485,189.58 = 136,464.20 : x
  2. Step 2: Convert to fraction form
    323,425.16/485,189.58 = 136,464.20/x
  3. Step 3: Cross multiply
    323,425.16x = 485,189.58 × 136,464.20
  4. Step 4: Simplify right side
    323,425.16x = 66,211,007,883.04
  5. Step 5: Solve for x
    x = 66,211,007,883.04/323,425.16
  6. Step 6: Final answer
    x = 204,718.17

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1.5x scale

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.