Home / 260,129.22-390,188.29-119,887.85

Finding the Fourth Proportional to 260,129.22, 390,188.29 and 119,887.85

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Solution

The fourth proportional to 260,129.22, 390,188.29 and 119,887.85 is: 179,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,129.22 : 390,188.29 = 119,887.85 : x
  2. Step 2: Convert to fraction form
    260,129.22/390,188.29 = 119,887.85/x
  3. Step 3: Cross multiply
    260,129.22x = 390,188.29 × 119,887.85
  4. Step 4: Simplify right side
    260,129.22x = 46,778,833,889.01
  5. Step 5: Solve for x
    x = 46,778,833,889.01/260,129.22
  6. Step 6: Final answer
    x = 179,829.22

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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.