Home / 279,260.40-385,381.04-151,936.92

Finding the Fourth Proportional to 279,260.40, 385,381.04 and 151,936.92

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Solution

The fourth proportional to 279,260.40, 385,381.04 and 151,936.92 is: 209,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,260.40 : 385,381.04 = 151,936.92 : x
  2. Step 2: Convert to fraction form
    279,260.40/385,381.04 = 151,936.92/x
  3. Step 3: Cross multiply
    279,260.40x = 385,381.04 × 151,936.92
  4. Step 4: Simplify right side
    279,260.40x = 58,553,608,244.00
  5. Step 5: Solve for x
    x = 58,553,608,244.00/279,260.40
  6. Step 6: Final answer
    x = 209,673.87

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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.