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Finding the Fourth Proportional to 279,378.44, 385,542.24 and 152,054.94

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Solution

The fourth proportional to 279,378.44, 385,542.24 and 152,054.94 is: 209,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,378.44 : 385,542.24 = 152,054.94 : x
  2. Step 2: Convert to fraction form
    279,378.44/385,542.24 = 152,054.94/x
  3. Step 3: Cross multiply
    279,378.44x = 385,542.24 × 152,054.94
  4. Step 4: Simplify right side
    279,378.44x = 58,623,602,170.67
  5. Step 5: Solve for x
    x = 58,623,602,170.67/279,378.44
  6. Step 6: Final answer
    x = 209,835.81

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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.