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Finding the Fourth Proportional to 430,531.86, 645,447.86 and 150,245.94

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Solution

The fourth proportional to 430,531.86, 645,447.86 and 150,245.94 is: 225,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,531.86 : 645,447.86 = 150,245.94 : x
  2. Step 2: Convert to fraction form
    430,531.86/645,447.86 = 150,245.94/x
  3. Step 3: Cross multiply
    430,531.86x = 645,447.86 × 150,245.94
  4. Step 4: Simplify right side
    430,531.86x = 96,975,920,446.69
  5. Step 5: Solve for x
    x = 96,975,920,446.69/430,531.86
  6. Step 6: Final answer
    x = 225,246.79

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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.