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Finding the Fourth Proportional to 445,038.44, 667,598.70 and 145,520.56

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Solution

The fourth proportional to 445,038.44, 667,598.70 and 145,520.56 is: 218,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,038.44 : 667,598.70 = 145,520.56 : x
  2. Step 2: Convert to fraction form
    445,038.44/667,598.70 = 145,520.56/x
  3. Step 3: Cross multiply
    445,038.44x = 667,598.70 × 145,520.56
  4. Step 4: Simplify right side
    445,038.44x = 97,149,336,679.27
  5. Step 5: Solve for x
    x = 97,149,336,679.27/445,038.44
  6. Step 6: Final answer
    x = 218,294.26

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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.