Home / 631,151.84-946,736.13-210,427.85

Finding the Fourth Proportional to 631,151.84, 946,736.13 and 210,427.85

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Solution

The fourth proportional to 631,151.84, 946,736.13 and 210,427.85 is: 315,644.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,151.84 : 946,736.13 = 210,427.85 : x
  2. Step 2: Convert to fraction form
    631,151.84/946,736.13 = 210,427.85/x
  3. Step 3: Cross multiply
    631,151.84x = 946,736.13 × 210,427.85
  4. Step 4: Simplify right side
    631,151.84x = 199,219,643,619.54
  5. Step 5: Solve for x
    x = 199,219,643,619.54/631,151.84
  6. Step 6: Final answer
    x = 315,644.56

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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.