Home / 389,046.03-536,887.61-219,280.15

Finding the Fourth Proportional to 389,046.03, 536,887.61 and 219,280.15

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Solution

The fourth proportional to 389,046.03, 536,887.61 and 219,280.15 is: 302,608.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,046.03 : 536,887.61 = 219,280.15 : x
  2. Step 2: Convert to fraction form
    389,046.03/536,887.61 = 219,280.15/x
  3. Step 3: Cross multiply
    389,046.03x = 536,887.61 × 219,280.15
  4. Step 4: Simplify right side
    389,046.03x = 117,728,796,050.95
  5. Step 5: Solve for x
    x = 117,728,796,050.95/389,046.03
  6. Step 6: Final answer
    x = 302,608.92

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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.