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Finding the Fourth Proportional to 373,289.80, 559,934.70 and 205,328.20

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Solution

The fourth proportional to 373,289.80, 559,934.70 and 205,328.20 is: 307,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,289.80 : 559,934.70 = 205,328.20 : x
  2. Step 2: Convert to fraction form
    373,289.80/559,934.70 = 205,328.20/x
  3. Step 3: Cross multiply
    373,289.80x = 559,934.70 × 205,328.20
  4. Step 4: Simplify right side
    373,289.80x = 114,970,384,068.54
  5. Step 5: Solve for x
    x = 114,970,384,068.54/373,289.80
  6. Step 6: Final answer
    x = 307,992.30

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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.