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Finding the Fourth Proportional to 460,992.10, 636,211.08 and 279,750.15

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Solution

The fourth proportional to 460,992.10, 636,211.08 and 279,750.15 is: 386,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,992.10 : 636,211.08 = 279,750.15 : x
  2. Step 2: Convert to fraction form
    460,992.10/636,211.08 = 279,750.15/x
  3. Step 3: Cross multiply
    460,992.10x = 636,211.08 × 279,750.15
  4. Step 4: Simplify right side
    460,992.10x = 177,980,141,880.61
  5. Step 5: Solve for x
    x = 177,980,141,880.61/460,992.10
  6. Step 6: Final answer
    x = 386,080.68

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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.