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Finding the Fourth Proportional to 491,485.50, 737,514.87 and 207,158.67

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Solution

The fourth proportional to 491,485.50, 737,514.87 and 207,158.67 is: 310,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,485.50 : 737,514.87 = 207,158.67 : x
  2. Step 2: Convert to fraction form
    491,485.50/737,514.87 = 207,158.67/x
  3. Step 3: Cross multiply
    491,485.50x = 737,514.87 × 207,158.67
  4. Step 4: Simplify right side
    491,485.50x = 152,782,599,574.42
  5. Step 5: Solve for x
    x = 152,782,599,574.42/491,485.50
  6. Step 6: Final answer
    x = 310,858.81

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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.