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Finding the Fourth Proportional to 323,829.70, 447,007.98 and 243,490.48

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Solution

The fourth proportional to 323,829.70, 447,007.98 and 243,490.48 is: 336,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,829.70 : 447,007.98 = 243,490.48 : x
  2. Step 2: Convert to fraction form
    323,829.70/447,007.98 = 243,490.48/x
  3. Step 3: Cross multiply
    323,829.70x = 447,007.98 × 243,490.48
  4. Step 4: Simplify right side
    323,829.70x = 108,842,187,614.03
  5. Step 5: Solve for x
    x = 108,842,187,614.03/323,829.70
  6. Step 6: Final answer
    x = 336,109.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.