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Finding the Fourth Proportional to 323,851.98, 485,298.20 and 131,492.49

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Solution

The fourth proportional to 323,851.98, 485,298.20 and 131,492.49 is: 197,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,851.98 : 485,298.20 = 131,492.49 : x
  2. Step 2: Convert to fraction form
    323,851.98/485,298.20 = 131,492.49/x
  3. Step 3: Cross multiply
    323,851.98x = 485,298.20 × 131,492.49
  4. Step 4: Simplify right side
    323,851.98x = 63,813,068,053.06
  5. Step 5: Solve for x
    x = 63,813,068,053.06/323,851.98
  6. Step 6: Final answer
    x = 197,043.93

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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.