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Finding the Fourth Proportional to 329,309.12, 454,443.73 and 178,405.76

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Solution

The fourth proportional to 329,309.12, 454,443.73 and 178,405.76 is: 246,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,309.12 : 454,443.73 = 178,405.76 : x
  2. Step 2: Convert to fraction form
    329,309.12/454,443.73 = 178,405.76/x
  3. Step 3: Cross multiply
    329,309.12x = 454,443.73 × 178,405.76
  4. Step 4: Simplify right side
    329,309.12x = 81,075,379,027.88
  5. Step 5: Solve for x
    x = 81,075,379,027.88/329,309.12
  6. Step 6: Final answer
    x = 246,198.40

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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.