Home / 320,969.34-442,932.25-177,726.30

Finding the Fourth Proportional to 320,969.34, 442,932.25 and 177,726.30

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Solution

The fourth proportional to 320,969.34, 442,932.25 and 177,726.30 is: 245,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,969.34 : 442,932.25 = 177,726.30 : x
  2. Step 2: Convert to fraction form
    320,969.34/442,932.25 = 177,726.30/x
  3. Step 3: Cross multiply
    320,969.34x = 442,932.25 × 177,726.30
  4. Step 4: Simplify right side
    320,969.34x = 78,720,709,943.18
  5. Step 5: Solve for x
    x = 78,720,709,943.18/320,969.34
  6. Step 6: Final answer
    x = 245,259.28

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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.