Home / 296,440.31-444,672.75-86,078.25

Finding the Fourth Proportional to 296,440.31, 444,672.75 and 86,078.25

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Solution

The fourth proportional to 296,440.31, 444,672.75 and 86,078.25 is: 129,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,440.31 : 444,672.75 = 86,078.25 : x
  2. Step 2: Convert to fraction form
    296,440.31/444,672.75 = 86,078.25/x
  3. Step 3: Cross multiply
    296,440.31x = 444,672.75 × 86,078.25
  4. Step 4: Simplify right side
    296,440.31x = 38,276,652,142.69
  5. Step 5: Solve for x
    x = 38,276,652,142.69/296,440.31
  6. Step 6: Final answer
    x = 129,120.94

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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.