Home / 278,836.09-384,796.24-151,511.69

Finding the Fourth Proportional to 278,836.09, 384,796.24 and 151,511.69

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Solution

The fourth proportional to 278,836.09, 384,796.24 and 151,511.69 is: 209,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,836.09 : 384,796.24 = 151,511.69 : x
  2. Step 2: Convert to fraction form
    278,836.09/384,796.24 = 151,511.69/x
  3. Step 3: Cross multiply
    278,836.09x = 384,796.24 × 151,511.69
  4. Step 4: Simplify right side
    278,836.09x = 58,301,127,710.49
  5. Step 5: Solve for x
    x = 58,301,127,710.49/278,836.09
  6. Step 6: Final answer
    x = 209,087.45

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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.