Home / 323,920.03-485,973.44-99,313.62

Finding the Fourth Proportional to 323,920.03, 485,973.44 and 99,313.62

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Solution

The fourth proportional to 323,920.03, 485,973.44 and 99,313.62 is: 148,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,920.03 : 485,973.44 = 99,313.62 : x
  2. Step 2: Convert to fraction form
    323,920.03/485,973.44 = 99,313.62/x
  3. Step 3: Cross multiply
    323,920.03x = 485,973.44 × 99,313.62
  4. Step 4: Simplify right side
    323,920.03x = 48,263,781,550.25
  5. Step 5: Solve for x
    x = 48,263,781,550.25/323,920.03
  6. Step 6: Final answer
    x = 148,999.06

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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.