Home / 278,581.93-384,437.26-151,257.62

Finding the Fourth Proportional to 278,581.93, 384,437.26 and 151,257.62

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Solution

The fourth proportional to 278,581.93, 384,437.26 and 151,257.62 is: 208,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,581.93 : 384,437.26 = 151,257.62 : x
  2. Step 2: Convert to fraction form
    278,581.93/384,437.26 = 151,257.62/x
  3. Step 3: Cross multiply
    278,581.93x = 384,437.26 × 151,257.62
  4. Step 4: Simplify right side
    278,581.93x = 58,149,064,986.92
  5. Step 5: Solve for x
    x = 58,149,064,986.92/278,581.93
  6. Step 6: Final answer
    x = 208,732.36

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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.