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Finding the Fourth Proportional to 272,783.70, 409,175.55 and 188,802.90

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Solution

The fourth proportional to 272,783.70, 409,175.55 and 188,802.90 is: 283,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,783.70 : 409,175.55 = 188,802.90 : x
  2. Step 2: Convert to fraction form
    272,783.70/409,175.55 = 188,802.90/x
  3. Step 3: Cross multiply
    272,783.70x = 409,175.55 × 188,802.90
  4. Step 4: Simplify right side
    272,783.70x = 77,253,530,449.10
  5. Step 5: Solve for x
    x = 77,253,530,449.10/272,783.70
  6. Step 6: Final answer
    x = 283,204.35

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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.