Home / 278,991.18-384,646.46-180,699.54

Finding the Fourth Proportional to 278,991.18, 384,646.46 and 180,699.54

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Solution

The fourth proportional to 278,991.18, 384,646.46 and 180,699.54 is: 249,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,991.18 : 384,646.46 = 180,699.54 : x
  2. Step 2: Convert to fraction form
    278,991.18/384,646.46 = 180,699.54/x
  3. Step 3: Cross multiply
    278,991.18x = 384,646.46 × 180,699.54
  4. Step 4: Simplify right side
    278,991.18x = 69,505,437,481.13
  5. Step 5: Solve for x
    x = 69,505,437,481.13/278,991.18
  6. Step 6: Final answer
    x = 249,131.31

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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.