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Finding the Fourth Proportional to 399,767.60, 599,881.80 and 150,628.40

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Solution

The fourth proportional to 399,767.60, 599,881.80 and 150,628.40 is: 226,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,767.60 : 599,881.80 = 150,628.40 : x
  2. Step 2: Convert to fraction form
    399,767.60/599,881.80 = 150,628.40/x
  3. Step 3: Cross multiply
    399,767.60x = 599,881.80 × 150,628.40
  4. Step 4: Simplify right side
    399,767.60x = 90,359,235,723.12
  5. Step 5: Solve for x
    x = 90,359,235,723.12/399,767.60
  6. Step 6: Final answer
    x = 226,029.41

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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.