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Finding the Fourth Proportional to 345,552.84, 518,479.02 and 168,213.96

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Solution

The fourth proportional to 345,552.84, 518,479.02 and 168,213.96 is: 252,393.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,552.84 : 518,479.02 = 168,213.96 : x
  2. Step 2: Convert to fraction form
    345,552.84/518,479.02 = 168,213.96/x
  3. Step 3: Cross multiply
    345,552.84x = 518,479.02 × 168,213.96
  4. Step 4: Simplify right side
    345,552.84x = 87,215,409,131.12
  5. Step 5: Solve for x
    x = 87,215,409,131.12/345,552.84
  6. Step 6: Final answer
    x = 252,393.84

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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.