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Finding the Fourth Proportional to 323,590.14, 485,003.97 and 145,889.10

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Solution

The fourth proportional to 323,590.14, 485,003.97 and 145,889.10 is: 218,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,590.14 : 485,003.97 = 145,889.10 : x
  2. Step 2: Convert to fraction form
    323,590.14/485,003.97 = 145,889.10/x
  3. Step 3: Cross multiply
    323,590.14x = 485,003.97 × 145,889.10
  4. Step 4: Simplify right side
    323,590.14x = 70,756,792,679.73
  5. Step 5: Solve for x
    x = 70,756,792,679.73/323,590.14
  6. Step 6: Final answer
    x = 218,661.77

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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.