Home / 252,195.40-378,323.34-102,403.72

Finding the Fourth Proportional to 252,195.40, 378,323.34 and 102,403.72

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Solution

The fourth proportional to 252,195.40, 378,323.34 and 102,403.72 is: 153,617.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,195.40 : 378,323.34 = 102,403.72 : x
  2. Step 2: Convert to fraction form
    252,195.40/378,323.34 = 102,403.72/x
  3. Step 3: Cross multiply
    252,195.40x = 378,323.34 × 102,403.72
  4. Step 4: Simplify right side
    252,195.40x = 38,741,717,378.82
  5. Step 5: Solve for x
    x = 38,741,717,378.82/252,195.40
  6. Step 6: Final answer
    x = 153,617.86

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1.5x scale

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.