Home / 320,969.59-442,938.00-177,729.63

Finding the Fourth Proportional to 320,969.59, 442,938.00 and 177,729.63

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Solution

The fourth proportional to 320,969.59, 442,938.00 and 177,729.63 is: 245,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,969.59 : 442,938.00 = 177,729.63 : x
  2. Step 2: Convert to fraction form
    320,969.59/442,938.00 = 177,729.63/x
  3. Step 3: Cross multiply
    320,969.59x = 442,938.00 × 177,729.63
  4. Step 4: Simplify right side
    320,969.59x = 78,723,205,858.41
  5. Step 5: Solve for x
    x = 78,723,205,858.41/320,969.59
  6. Step 6: Final answer
    x = 245,266.87

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1.5x scale

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.