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Finding the Fourth Proportional to 399,048.80, 598,236.08 and 185,706.62

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Solution

The fourth proportional to 399,048.80, 598,236.08 and 185,706.62 is: 278,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,048.80 : 598,236.08 = 185,706.62 : x
  2. Step 2: Convert to fraction form
    399,048.80/598,236.08 = 185,706.62/x
  3. Step 3: Cross multiply
    399,048.80x = 598,236.08 × 185,706.62
  4. Step 4: Simplify right side
    399,048.80x = 111,096,400,378.85
  5. Step 5: Solve for x
    x = 111,096,400,378.85/399,048.80
  6. Step 6: Final answer
    x = 278,403.04

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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.