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Finding the Fourth Proportional to 323,578.02, 485,367.05 and 98,938.47

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Solution

The fourth proportional to 323,578.02, 485,367.05 and 98,938.47 is: 148,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,578.02 : 485,367.05 = 98,938.47 : x
  2. Step 2: Convert to fraction form
    323,578.02/485,367.05 = 98,938.47/x
  3. Step 3: Cross multiply
    323,578.02x = 485,367.05 × 98,938.47
  4. Step 4: Simplify right side
    323,578.02x = 48,021,473,315.41
  5. Step 5: Solve for x
    x = 48,021,473,315.41/323,578.02
  6. Step 6: Final answer
    x = 148,407.71

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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.