Home / 251,240.21-376,779.30-82,720.40

Finding the Fourth Proportional to 251,240.21, 376,779.30 and 82,720.40

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Solution

The fourth proportional to 251,240.21, 376,779.30 and 82,720.40 is: 124,053.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,240.21 : 376,779.30 = 82,720.40 : x
  2. Step 2: Convert to fraction form
    251,240.21/376,779.30 = 82,720.40/x
  3. Step 3: Cross multiply
    251,240.21x = 376,779.30 × 82,720.40
  4. Step 4: Simplify right side
    251,240.21x = 31,167,332,523.82
  5. Step 5: Solve for x
    x = 31,167,332,523.82/251,240.21
  6. Step 6: Final answer
    x = 124,053.92

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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.