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Finding the Fourth Proportional to 272,341.40, 408,512.10 and 202,357.40

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Solution

The fourth proportional to 272,341.40, 408,512.10 and 202,357.40 is: 303,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,341.40 : 408,512.10 = 202,357.40 : x
  2. Step 2: Convert to fraction form
    272,341.40/408,512.10 = 202,357.40/x
  3. Step 3: Cross multiply
    272,341.40x = 408,512.10 × 202,357.40
  4. Step 4: Simplify right side
    272,341.40x = 82,665,446,424.54
  5. Step 5: Solve for x
    x = 82,665,446,424.54/272,341.40
  6. Step 6: Final answer
    x = 303,536.10

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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.