Home / 341,948.67-512,609.13-131,428.05

Finding the Fourth Proportional to 341,948.67, 512,609.13 and 131,428.05

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Solution

The fourth proportional to 341,948.67, 512,609.13 and 131,428.05 is: 197,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,948.67 : 512,609.13 = 131,428.05 : x
  2. Step 2: Convert to fraction form
    341,948.67/512,609.13 = 131,428.05/x
  3. Step 3: Cross multiply
    341,948.67x = 512,609.13 × 131,428.05
  4. Step 4: Simplify right side
    341,948.67x = 67,371,218,368.10
  5. Step 5: Solve for x
    x = 67,371,218,368.10/341,948.67
  6. Step 6: Final answer
    x = 197,021.44

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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.