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Finding the Fourth Proportional to 323,850.96, 485,808.75 and 99,208.80

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Solution

The fourth proportional to 323,850.96, 485,808.75 and 99,208.80 is: 148,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,850.96 : 485,808.75 = 99,208.80 : x
  2. Step 2: Convert to fraction form
    323,850.96/485,808.75 = 99,208.80/x
  3. Step 3: Cross multiply
    323,850.96x = 485,808.75 × 99,208.80
  4. Step 4: Simplify right side
    323,850.96x = 48,196,503,117
  5. Step 5: Solve for x
    x = 48,196,503,117/323,850.96
  6. Step 6: Final answer
    x = 148,823.10

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1.5x scale

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.