Home / 272,152.20-408,228.30-82,612.20

Finding the Fourth Proportional to 272,152.20, 408,228.30 and 82,612.20

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Solution

The fourth proportional to 272,152.20, 408,228.30 and 82,612.20 is: 123,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,152.20 : 408,228.30 = 82,612.20 : x
  2. Step 2: Convert to fraction form
    272,152.20/408,228.30 = 82,612.20/x
  3. Step 3: Cross multiply
    272,152.20x = 408,228.30 × 82,612.20
  4. Step 4: Simplify right side
    272,152.20x = 33,724,637,965.26
  5. Step 5: Solve for x
    x = 33,724,637,965.26/272,152.20
  6. Step 6: Final answer
    x = 123,918.30

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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.