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Finding the Fourth Proportional to 303,887.84, 419,343.54 and 167,920.28

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Solution

The fourth proportional to 303,887.84, 419,343.54 and 167,920.28 is: 231,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,887.84 : 419,343.54 = 167,920.28 : x
  2. Step 2: Convert to fraction form
    303,887.84/419,343.54 = 167,920.28/x
  3. Step 3: Cross multiply
    303,887.84x = 419,343.54 × 167,920.28
  4. Step 4: Simplify right side
    303,887.84x = 70,416,284,652.99
  5. Step 5: Solve for x
    x = 70,416,284,652.99/303,887.84
  6. Step 6: Final answer
    x = 231,718.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.