Home / 201,982.76-278,633.64-154,153.04

Finding the Fourth Proportional to 201,982.76, 278,633.64 and 154,153.04

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Solution

The fourth proportional to 201,982.76, 278,633.64 and 154,153.04 is: 212,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,982.76 : 278,633.64 = 154,153.04 : x
  2. Step 2: Convert to fraction form
    201,982.76/278,633.64 = 154,153.04/x
  3. Step 3: Cross multiply
    201,982.76x = 278,633.64 × 154,153.04
  4. Step 4: Simplify right side
    201,982.76x = 42,952,222,652.27
  5. Step 5: Solve for x
    x = 42,952,222,652.27/201,982.76
  6. Step 6: Final answer
    x = 212,652.91

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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.