Home / 320,491.49-442,284.91-177,261.21

Finding the Fourth Proportional to 320,491.49, 442,284.91 and 177,261.21

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Solution

The fourth proportional to 320,491.49, 442,284.91 and 177,261.21 is: 244,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,491.49 : 442,284.91 = 177,261.21 : x
  2. Step 2: Convert to fraction form
    320,491.49/442,284.91 = 177,261.21/x
  3. Step 3: Cross multiply
    320,491.49x = 442,284.91 × 177,261.21
  4. Step 4: Simplify right side
    320,491.49x = 78,399,957,868.19
  5. Step 5: Solve for x
    x = 78,399,957,868.19/320,491.49
  6. Step 6: Final answer
    x = 244,624.15

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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.