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Finding the Fourth Proportional to 279,682.62, 385,960.02 and 152,358.18

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Solution

The fourth proportional to 279,682.62, 385,960.02 and 152,358.18 is: 210,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,682.62 : 385,960.02 = 152,358.18 : x
  2. Step 2: Convert to fraction form
    279,682.62/385,960.02 = 152,358.18/x
  3. Step 3: Cross multiply
    279,682.62x = 385,960.02 × 152,358.18
  4. Step 4: Simplify right side
    279,682.62x = 58,804,166,199.96
  5. Step 5: Solve for x
    x = 58,804,166,199.96/279,682.62
  6. Step 6: Final answer
    x = 210,253.20

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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.