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Finding the Fourth Proportional to 272,871.92, 376,563.84 and 158,172.68

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Solution

The fourth proportional to 272,871.92, 376,563.84 and 158,172.68 is: 218,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,871.92 : 376,563.84 = 158,172.68 : x
  2. Step 2: Convert to fraction form
    272,871.92/376,563.84 = 158,172.68/x
  3. Step 3: Cross multiply
    272,871.92x = 376,563.84 × 158,172.68
  4. Step 4: Simplify right side
    272,871.92x = 59,562,111,763.89
  5. Step 5: Solve for x
    x = 59,562,111,763.89/272,871.92
  6. Step 6: Final answer
    x = 218,278.64

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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.