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Finding the Fourth Proportional to 320,646.87, 480,906.61 and 92,969.24

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Solution

The fourth proportional to 320,646.87, 480,906.61 and 92,969.24 is: 139,435.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,646.87 : 480,906.61 = 92,969.24 : x
  2. Step 2: Convert to fraction form
    320,646.87/480,906.61 = 92,969.24/x
  3. Step 3: Cross multiply
    320,646.87x = 480,906.61 × 92,969.24
  4. Step 4: Simplify right side
    320,646.87x = 44,709,519,405.72
  5. Step 5: Solve for x
    x = 44,709,519,405.72/320,646.87
  6. Step 6: Final answer
    x = 139,435.38

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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.