Home / 259,655.22-389,478.79-133,222.50

Finding the Fourth Proportional to 259,655.22, 389,478.79 and 133,222.50

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Solution

The fourth proportional to 259,655.22, 389,478.79 and 133,222.50 is: 199,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,655.22 : 389,478.79 = 133,222.50 : x
  2. Step 2: Convert to fraction form
    259,655.22/389,478.79 = 133,222.50/x
  3. Step 3: Cross multiply
    259,655.22x = 389,478.79 × 133,222.50
  4. Step 4: Simplify right side
    259,655.22x = 51,887,337,748.53
  5. Step 5: Solve for x
    x = 51,887,337,748.53/259,655.22
  6. Step 6: Final answer
    x = 199,831.68

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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.