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Finding the Fourth Proportional to 279,119.94, 385,273.25 and 158,341.52

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Solution

The fourth proportional to 279,119.94, 385,273.25 and 158,341.52 is: 218,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,119.94 : 385,273.25 = 158,341.52 : x
  2. Step 2: Convert to fraction form
    279,119.94/385,273.25 = 158,341.52/x
  3. Step 3: Cross multiply
    279,119.94x = 385,273.25 × 158,341.52
  4. Step 4: Simplify right side
    279,119.94x = 61,004,749,302.27
  5. Step 5: Solve for x
    x = 61,004,749,302.27/279,119.94
  6. Step 6: Final answer
    x = 218,561.06

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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.