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Finding the Fourth Proportional to 272,341.90, 408,512.85 and 202,357.90

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Solution

The fourth proportional to 272,341.90, 408,512.85 and 202,357.90 is: 303,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,341.90 : 408,512.85 = 202,357.90 : x
  2. Step 2: Convert to fraction form
    272,341.90/408,512.85 = 202,357.90/x
  3. Step 3: Cross multiply
    272,341.90x = 408,512.85 × 202,357.90
  4. Step 4: Simplify right side
    272,341.90x = 82,665,802,449.02
  5. Step 5: Solve for x
    x = 82,665,802,449.02/272,341.90
  6. Step 6: Final answer
    x = 303,536.85

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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.