Home / 252,015.40-378,023.10-145,727.20

Finding the Fourth Proportional to 252,015.40, 378,023.10 and 145,727.20

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Solution

The fourth proportional to 252,015.40, 378,023.10 and 145,727.20 is: 218,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,015.40 : 378,023.10 = 145,727.20 : x
  2. Step 2: Convert to fraction form
    252,015.40/378,023.10 = 145,727.20/x
  3. Step 3: Cross multiply
    252,015.40x = 378,023.10 × 145,727.20
  4. Step 4: Simplify right side
    252,015.40x = 55,088,247,898.32
  5. Step 5: Solve for x
    x = 55,088,247,898.32/252,015.40
  6. Step 6: Final answer
    x = 218,590.80

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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.