Home / 278,900.82-384,881.02-151,577.33

Finding the Fourth Proportional to 278,900.82, 384,881.02 and 151,577.33

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Solution

The fourth proportional to 278,900.82, 384,881.02 and 151,577.33 is: 209,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,900.82 : 384,881.02 = 151,577.33 : x
  2. Step 2: Convert to fraction form
    278,900.82/384,881.02 = 151,577.33/x
  3. Step 3: Cross multiply
    278,900.82x = 384,881.02 × 151,577.33
  4. Step 4: Simplify right side
    278,900.82x = 58,339,235,075.93
  5. Step 5: Solve for x
    x = 58,339,235,075.93/278,900.82
  6. Step 6: Final answer
    x = 209,175.56

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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.