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Finding the Fourth Proportional to 300,031.02, 447,399.79 and 297,330.75

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Solution

The fourth proportional to 300,031.02, 447,399.79 and 297,330.75 is: 443,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,031.02 : 447,399.79 = 297,330.75 : x
  2. Step 2: Convert to fraction form
    300,031.02/447,399.79 = 297,330.75/x
  3. Step 3: Cross multiply
    300,031.02x = 447,399.79 × 297,330.75
  4. Step 4: Simplify right side
    300,031.02x = 133,025,714,367.22
  5. Step 5: Solve for x
    x = 133,025,714,367.22/300,031.02
  6. Step 6: Final answer
    x = 443,373.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.