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Finding the Fourth Proportional to 325,191.96, 448,818 and 223,133.18

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Solution

The fourth proportional to 325,191.96, 448,818 and 223,133.18 is: 307,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,191.96 : 448,818 = 223,133.18 : x
  2. Step 2: Convert to fraction form
    325,191.96/448,818 = 223,133.18/x
  3. Step 3: Cross multiply
    325,191.96x = 448,818 × 223,133.18
  4. Step 4: Simplify right side
    325,191.96x = 100,146,185,337.15
  5. Step 5: Solve for x
    x = 100,146,185,337.15/325,191.96
  6. Step 6: Final answer
    x = 307,960.21

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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.