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Finding the Fourth Proportional to 323,994.76, 485,999.12 and 99,350.21

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Solution

The fourth proportional to 323,994.76, 485,999.12 and 99,350.21 is: 149,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,994.76 : 485,999.12 = 99,350.21 : x
  2. Step 2: Convert to fraction form
    323,994.76/485,999.12 = 99,350.21/x
  3. Step 3: Cross multiply
    323,994.76x = 485,999.12 × 99,350.21
  4. Step 4: Simplify right side
    323,994.76x = 48,284,116,095.19
  5. Step 5: Solve for x
    x = 48,284,116,095.19/323,994.76
  6. Step 6: Final answer
    x = 149,027.46

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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.