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Finding the Fourth Proportional to 272,338.40, 408,507.36 and 82,800.32

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Solution

The fourth proportional to 272,338.40, 408,507.36 and 82,800.32 is: 124,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,338.40 : 408,507.36 = 82,800.32 : x
  2. Step 2: Convert to fraction form
    272,338.40/408,507.36 = 82,800.32/x
  3. Step 3: Cross multiply
    272,338.40x = 408,507.36 × 82,800.32
  4. Step 4: Simplify right side
    272,338.40x = 33,824,540,130.36
  5. Step 5: Solve for x
    x = 33,824,540,130.36/272,338.40
  6. Step 6: Final answer
    x = 124,200.41

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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.