Home / 251,904.40-377,856.60-145,616.20

Finding the Fourth Proportional to 251,904.40, 377,856.60 and 145,616.20

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Solution

The fourth proportional to 251,904.40, 377,856.60 and 145,616.20 is: 218,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,904.40 : 377,856.60 = 145,616.20 : x
  2. Step 2: Convert to fraction form
    251,904.40/377,856.60 = 145,616.20/x
  3. Step 3: Cross multiply
    251,904.40x = 377,856.60 × 145,616.20
  4. Step 4: Simplify right side
    251,904.40x = 55,022,042,236.92
  5. Step 5: Solve for x
    x = 55,022,042,236.92/251,904.40
  6. Step 6: Final answer
    x = 218,424.30

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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.