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Finding the Fourth Proportional to 508,531.66, 762,772.72 and 188,745.78

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Solution

The fourth proportional to 508,531.66, 762,772.72 and 188,745.78 is: 283,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,531.66 : 762,772.72 = 188,745.78 : x
  2. Step 2: Convert to fraction form
    508,531.66/762,772.72 = 188,745.78/x
  3. Step 3: Cross multiply
    508,531.66x = 762,772.72 × 188,745.78
  4. Step 4: Simplify right side
    508,531.66x = 143,970,131,999.12
  5. Step 5: Solve for x
    x = 143,970,131,999.12/508,531.66
  6. Step 6: Final answer
    x = 283,109.48

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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.