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Finding the Fourth Proportional to 329,125.20, 493,687.80 and 303,464.40

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Solution

The fourth proportional to 329,125.20, 493,687.80 and 303,464.40 is: 455,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,125.20 : 493,687.80 = 303,464.40 : x
  2. Step 2: Convert to fraction form
    329,125.20/493,687.80 = 303,464.40/x
  3. Step 3: Cross multiply
    329,125.20x = 493,687.80 × 303,464.40
  4. Step 4: Simplify right side
    329,125.20x = 149,816,672,014.32
  5. Step 5: Solve for x
    x = 149,816,672,014.32/329,125.20
  6. Step 6: Final answer
    x = 455,196.60

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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.