Home / 338,640.48-507,515.04-188,951.20

Finding the Fourth Proportional to 338,640.48, 507,515.04 and 188,951.20

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Solution

The fourth proportional to 338,640.48, 507,515.04 and 188,951.20 is: 283,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,640.48 : 507,515.04 = 188,951.20 : x
  2. Step 2: Convert to fraction form
    338,640.48/507,515.04 = 188,951.20/x
  3. Step 3: Cross multiply
    338,640.48x = 507,515.04 × 188,951.20
  4. Step 4: Simplify right side
    338,640.48x = 95,895,575,826.05
  5. Step 5: Solve for x
    x = 95,895,575,826.05/338,640.48
  6. Step 6: Final answer
    x = 283,178.12

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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.