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Finding the Fourth Proportional to 251,240.46, 376,779.68 and 82,720.65

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Solution

The fourth proportional to 251,240.46, 376,779.68 and 82,720.65 is: 124,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,240.46 : 376,779.68 = 82,720.65 : x
  2. Step 2: Convert to fraction form
    251,240.46/376,779.68 = 82,720.65/x
  3. Step 3: Cross multiply
    251,240.46x = 376,779.68 × 82,720.65
  4. Step 4: Simplify right side
    251,240.46x = 31,167,460,036.39
  5. Step 5: Solve for x
    x = 31,167,460,036.39/251,240.46
  6. Step 6: Final answer
    x = 124,054.30

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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.