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Finding the Fourth Proportional to 303,134.70, 453,924.45 and 289,137.90

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Solution

The fourth proportional to 303,134.70, 453,924.45 and 289,137.90 is: 432,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,134.70 : 453,924.45 = 289,137.90 : x
  2. Step 2: Convert to fraction form
    303,134.70/453,924.45 = 289,137.90/x
  3. Step 3: Cross multiply
    303,134.70x = 453,924.45 × 289,137.90
  4. Step 4: Simplify right side
    303,134.70x = 131,246,762,231.66
  5. Step 5: Solve for x
    x = 131,246,762,231.66/303,134.70
  6. Step 6: Final answer
    x = 432,965.15

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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.