Home / 385,540.68-531,982.67-242,199.21

Finding the Fourth Proportional to 385,540.68, 531,982.67 and 242,199.21

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Solution

The fourth proportional to 385,540.68, 531,982.67 and 242,199.21 is: 334,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,540.68 : 531,982.67 = 242,199.21 : x
  2. Step 2: Convert to fraction form
    385,540.68/531,982.67 = 242,199.21/x
  3. Step 3: Cross multiply
    385,540.68x = 531,982.67 × 242,199.21
  4. Step 4: Simplify right side
    385,540.68x = 128,845,781,196.70
  5. Step 5: Solve for x
    x = 128,845,781,196.70/385,540.68
  6. Step 6: Final answer
    x = 334,195.04

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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.