Home / 323,848.20-485,772.30-99,208.20

Finding the Fourth Proportional to 323,848.20, 485,772.30 and 99,208.20

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Solution

The fourth proportional to 323,848.20, 485,772.30 and 99,208.20 is: 148,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,848.20 : 485,772.30 = 99,208.20 : x
  2. Step 2: Convert to fraction form
    323,848.20/485,772.30 = 99,208.20/x
  3. Step 3: Cross multiply
    323,848.20x = 485,772.30 × 99,208.20
  4. Step 4: Simplify right side
    323,848.20x = 48,192,595,492.86
  5. Step 5: Solve for x
    x = 48,192,595,492.86/323,848.20
  6. Step 6: Final answer
    x = 148,812.30

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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.