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Finding the Fourth Proportional to 631,238.17, 946,990.41 and 204,740.87

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Solution

The fourth proportional to 631,238.17, 946,990.41 and 204,740.87 is: 307,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,238.17 : 946,990.41 = 204,740.87 : x
  2. Step 2: Convert to fraction form
    631,238.17/946,990.41 = 204,740.87/x
  3. Step 3: Cross multiply
    631,238.17x = 946,990.41 × 204,740.87
  4. Step 4: Simplify right side
    631,238.17x = 193,887,644,383.69
  5. Step 5: Solve for x
    x = 193,887,644,383.69/631,238.17
  6. Step 6: Final answer
    x = 307,154.50

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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.