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Finding the Fourth Proportional to 351,803.64, 485,194.86 and 230,850.84

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Solution

The fourth proportional to 351,803.64, 485,194.86 and 230,850.84 is: 318,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,803.64 : 485,194.86 = 230,850.84 : x
  2. Step 2: Convert to fraction form
    351,803.64/485,194.86 = 230,850.84/x
  3. Step 3: Cross multiply
    351,803.64x = 485,194.86 × 230,850.84
  4. Step 4: Simplify right side
    351,803.64x = 112,007,640,994.68
  5. Step 5: Solve for x
    x = 112,007,640,994.68/351,803.64
  6. Step 6: Final answer
    x = 318,381.13

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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.