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Finding the Fourth Proportional to 491,486.45, 737,516.30 and 207,159.62

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Solution

The fourth proportional to 491,486.45, 737,516.30 and 207,159.62 is: 310,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,486.45 : 737,516.30 = 207,159.62 : x
  2. Step 2: Convert to fraction form
    491,486.45/737,516.30 = 207,159.62/x
  3. Step 3: Cross multiply
    491,486.45x = 737,516.30 × 207,159.62
  4. Step 4: Simplify right side
    491,486.45x = 152,783,591,728.43
  5. Step 5: Solve for x
    x = 152,783,591,728.43/491,486.45
  6. Step 6: Final answer
    x = 310,860.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.