Home / 420,981.06-631,183.32-151,103.22

Finding the Fourth Proportional to 420,981.06, 631,183.32 and 151,103.22

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Solution

The fourth proportional to 420,981.06, 631,183.32 and 151,103.22 is: 226,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,981.06 : 631,183.32 = 151,103.22 : x
  2. Step 2: Convert to fraction form
    420,981.06/631,183.32 = 151,103.22/x
  3. Step 3: Cross multiply
    420,981.06x = 631,183.32 × 151,103.22
  4. Step 4: Simplify right side
    420,981.06x = 95,373,832,062.29
  5. Step 5: Solve for x
    x = 95,373,832,062.29/420,981.06
  6. Step 6: Final answer
    x = 226,551.36

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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.