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Finding the Fourth Proportional to 355,500.48, 490,589.46 and 194,355.66

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Solution

The fourth proportional to 355,500.48, 490,589.46 and 194,355.66 is: 268,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,500.48 : 490,589.46 = 194,355.66 : x
  2. Step 2: Convert to fraction form
    355,500.48/490,589.46 = 194,355.66/x
  3. Step 3: Cross multiply
    355,500.48x = 490,589.46 × 194,355.66
  4. Step 4: Simplify right side
    355,500.48x = 95,348,838,287.34
  5. Step 5: Solve for x
    x = 95,348,838,287.34/355,500.48
  6. Step 6: Final answer
    x = 268,210.15

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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.