Home / 272,624.20-408,936.30-139,460.20

Finding the Fourth Proportional to 272,624.20, 408,936.30 and 139,460.20

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Solution

The fourth proportional to 272,624.20, 408,936.30 and 139,460.20 is: 209,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,624.20 : 408,936.30 = 139,460.20 : x
  2. Step 2: Convert to fraction form
    272,624.20/408,936.30 = 139,460.20/x
  3. Step 3: Cross multiply
    272,624.20x = 408,936.30 × 139,460.20
  4. Step 4: Simplify right side
    272,624.20x = 57,030,338,185.26
  5. Step 5: Solve for x
    x = 57,030,338,185.26/272,624.20
  6. Step 6: Final answer
    x = 209,190.30

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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.