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Finding the Fourth Proportional to 443,430.40, 664,951.20 and 177,102.40

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Solution

The fourth proportional to 443,430.40, 664,951.20 and 177,102.40 is: 265,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,430.40 : 664,951.20 = 177,102.40 : x
  2. Step 2: Convert to fraction form
    443,430.40/664,951.20 = 177,102.40/x
  3. Step 3: Cross multiply
    443,430.40x = 664,951.20 × 177,102.40
  4. Step 4: Simplify right side
    443,430.40x = 117,764,453,402.88
  5. Step 5: Solve for x
    x = 117,764,453,402.88/443,430.40
  6. Step 6: Final answer
    x = 265,575.96

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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.