Home / 272,214.10-408,029.55-122,428.90

Finding the Fourth Proportional to 272,214.10, 408,029.55 and 122,428.90

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Solution

The fourth proportional to 272,214.10, 408,029.55 and 122,428.90 is: 183,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,214.10 : 408,029.55 = 122,428.90 : x
  2. Step 2: Convert to fraction form
    272,214.10/408,029.55 = 122,428.90/x
  3. Step 3: Cross multiply
    272,214.10x = 408,029.55 × 122,428.90
  4. Step 4: Simplify right side
    272,214.10x = 49,954,608,974.00
  5. Step 5: Solve for x
    x = 49,954,608,974.00/272,214.10
  6. Step 6: Final answer
    x = 183,512.20

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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.