Home / 279,132.82-385,291.05-164,403.71

Finding the Fourth Proportional to 279,132.82, 385,291.05 and 164,403.71

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Solution

The fourth proportional to 279,132.82, 385,291.05 and 164,403.71 is: 226,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,132.82 : 385,291.05 = 164,403.71 : x
  2. Step 2: Convert to fraction form
    279,132.82/385,291.05 = 164,403.71/x
  3. Step 3: Cross multiply
    279,132.82x = 385,291.05 × 164,403.71
  4. Step 4: Simplify right side
    279,132.82x = 63,343,276,951.67
  5. Step 5: Solve for x
    x = 63,343,276,951.67/279,132.82
  6. Step 6: Final answer
    x = 226,928.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.