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Finding the Fourth Proportional to 279,532.62, 385,756.83 and 152,208.72

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Solution

The fourth proportional to 279,532.62, 385,756.83 and 152,208.72 is: 210,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,532.62 : 385,756.83 = 152,208.72 : x
  2. Step 2: Convert to fraction form
    279,532.62/385,756.83 = 152,208.72/x
  3. Step 3: Cross multiply
    279,532.62x = 385,756.83 × 152,208.72
  4. Step 4: Simplify right side
    279,532.62x = 58,715,553,325.56
  5. Step 5: Solve for x
    x = 58,715,553,325.56/279,532.62
  6. Step 6: Final answer
    x = 210,049.02

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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.