Home / 385,540.70-531,982.66-242,199.22

Finding the Fourth Proportional to 385,540.70, 531,982.66 and 242,199.22

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Solution

The fourth proportional to 385,540.70, 531,982.66 and 242,199.22 is: 334,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,540.70 : 531,982.66 = 242,199.22 : x
  2. Step 2: Convert to fraction form
    385,540.70/531,982.66 = 242,199.22/x
  3. Step 3: Cross multiply
    385,540.70x = 531,982.66 × 242,199.22
  4. Step 4: Simplify right side
    385,540.70x = 128,845,785,305.53
  5. Step 5: Solve for x
    x = 128,845,785,305.53/385,540.70
  6. Step 6: Final answer
    x = 334,195.03

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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.