Home / 260,327.54-390,045.53-142,081.85

Finding the Fourth Proportional to 260,327.54, 390,045.53 and 142,081.85

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Solution

The fourth proportional to 260,327.54, 390,045.53 and 142,081.85 is: 212,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,327.54 : 390,045.53 = 142,081.85 : x
  2. Step 2: Convert to fraction form
    260,327.54/390,045.53 = 142,081.85/x
  3. Step 3: Cross multiply
    260,327.54x = 390,045.53 × 142,081.85
  4. Step 4: Simplify right side
    260,327.54x = 55,418,387,825.99
  5. Step 5: Solve for x
    x = 55,418,387,825.99/260,327.54
  6. Step 6: Final answer
    x = 212,879.47

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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.