Home / 439,189.56-658,486.26-139,580.28

Finding the Fourth Proportional to 439,189.56, 658,486.26 and 139,580.28

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Solution

The fourth proportional to 439,189.56, 658,486.26 and 139,580.28 is: 209,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,189.56 : 658,486.26 = 139,580.28 : x
  2. Step 2: Convert to fraction form
    439,189.56/658,486.26 = 139,580.28/x
  3. Step 3: Cross multiply
    439,189.56x = 658,486.26 × 139,580.28
  4. Step 4: Simplify right side
    439,189.56x = 91,911,696,546.95
  5. Step 5: Solve for x
    x = 91,911,696,546.95/439,189.56
  6. Step 6: Final answer
    x = 209,275.69

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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.