Home / 260,182.74-390,336.23-82,690.08

Finding the Fourth Proportional to 260,182.74, 390,336.23 and 82,690.08

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Solution

The fourth proportional to 260,182.74, 390,336.23 and 82,690.08 is: 124,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,182.74 : 390,336.23 = 82,690.08 : x
  2. Step 2: Convert to fraction form
    260,182.74/390,336.23 = 82,690.08/x
  3. Step 3: Cross multiply
    260,182.74x = 390,336.23 × 82,690.08
  4. Step 4: Simplify right side
    260,182.74x = 32,276,932,828.56
  5. Step 5: Solve for x
    x = 32,276,932,828.56/260,182.74
  6. Step 6: Final answer
    x = 124,054.86

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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.