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Finding the Fourth Proportional to 279,792.29, 386,113.41 and 152,467.88

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Solution

The fourth proportional to 279,792.29, 386,113.41 and 152,467.88 is: 210,405.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,792.29 : 386,113.41 = 152,467.88 : x
  2. Step 2: Convert to fraction form
    279,792.29/386,113.41 = 152,467.88/x
  3. Step 3: Cross multiply
    279,792.29x = 386,113.41 × 152,467.88
  4. Step 4: Simplify right side
    279,792.29x = 58,869,891,131.70
  5. Step 5: Solve for x
    x = 58,869,891,131.70/279,792.29
  6. Step 6: Final answer
    x = 210,405.69

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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.