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Finding the Fourth Proportional to 451,519.70, 677,379.38 and 151,990.41

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Solution

The fourth proportional to 451,519.70, 677,379.38 and 151,990.41 is: 228,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,519.70 : 677,379.38 = 151,990.41 : x
  2. Step 2: Convert to fraction form
    451,519.70/677,379.38 = 151,990.41/x
  3. Step 3: Cross multiply
    451,519.70x = 677,379.38 × 151,990.41
  4. Step 4: Simplify right side
    451,519.70x = 102,955,168,931.79
  5. Step 5: Solve for x
    x = 102,955,168,931.79/451,519.70
  6. Step 6: Final answer
    x = 228,019.22

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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.