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Finding the Fourth Proportional to 220,181.84, 303,753.48 and 130,706

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Solution

The fourth proportional to 220,181.84, 303,753.48 and 130,706 is: 180,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,181.84 : 303,753.48 = 130,706 : x
  2. Step 2: Convert to fraction form
    220,181.84/303,753.48 = 130,706/x
  3. Step 3: Cross multiply
    220,181.84x = 303,753.48 × 130,706
  4. Step 4: Simplify right side
    220,181.84x = 39,702,402,356.88
  5. Step 5: Solve for x
    x = 39,702,402,356.88/220,181.84
  6. Step 6: Final answer
    x = 180,316.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.