Home / 252,003.40-378,177.90-111,862.60

Finding the Fourth Proportional to 252,003.40, 378,177.90 and 111,862.60

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Solution

The fourth proportional to 252,003.40, 378,177.90 and 111,862.60 is: 167,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,003.40 : 378,177.90 = 111,862.60 : x
  2. Step 2: Convert to fraction form
    252,003.40/378,177.90 = 111,862.60/x
  3. Step 3: Cross multiply
    252,003.40x = 378,177.90 × 111,862.60
  4. Step 4: Simplify right side
    252,003.40x = 42,303,963,156.54
  5. Step 5: Solve for x
    x = 42,303,963,156.54/252,003.40
  6. Step 6: Final answer
    x = 167,870.60

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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.