Home / 251,818.20-377,727.30-85,606.20

Finding the Fourth Proportional to 251,818.20, 377,727.30 and 85,606.20

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Solution

The fourth proportional to 251,818.20, 377,727.30 and 85,606.20 is: 128,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,818.20 : 377,727.30 = 85,606.20 : x
  2. Step 2: Convert to fraction form
    251,818.20/377,727.30 = 85,606.20/x
  3. Step 3: Cross multiply
    251,818.20x = 377,727.30 × 85,606.20
  4. Step 4: Simplify right side
    251,818.20x = 32,335,798,789.26
  5. Step 5: Solve for x
    x = 32,335,798,789.26/251,818.20
  6. Step 6: Final answer
    x = 128,409.30

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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.