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Finding the Fourth Proportional to 384,404.40, 576,606.60 and 147,754.80

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Solution

The fourth proportional to 384,404.40, 576,606.60 and 147,754.80 is: 221,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,404.40 : 576,606.60 = 147,754.80 : x
  2. Step 2: Convert to fraction form
    384,404.40/576,606.60 = 147,754.80/x
  3. Step 3: Cross multiply
    384,404.40x = 576,606.60 × 147,754.80
  4. Step 4: Simplify right side
    384,404.40x = 85,196,392,861.68
  5. Step 5: Solve for x
    x = 85,196,392,861.68/384,404.40
  6. Step 6: Final answer
    x = 221,632.20

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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.