Home / 260,255.02-390,421.41-82,767.82

Finding the Fourth Proportional to 260,255.02, 390,421.41 and 82,767.82

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Solution

The fourth proportional to 260,255.02, 390,421.41 and 82,767.82 is: 124,164.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,255.02 : 390,421.41 = 82,767.82 : x
  2. Step 2: Convert to fraction form
    260,255.02/390,421.41 = 82,767.82/x
  3. Step 3: Cross multiply
    260,255.02x = 390,421.41 × 82,767.82
  4. Step 4: Simplify right side
    260,255.02x = 32,314,328,987.03
  5. Step 5: Solve for x
    x = 32,314,328,987.03/260,255.02
  6. Step 6: Final answer
    x = 124,164.09

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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.