Home / 278,670.22-384,588.62-157,833

Finding the Fourth Proportional to 278,670.22, 384,588.62 and 157,833

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Solution

The fourth proportional to 278,670.22, 384,588.62 and 157,833 is: 217,822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,670.22 : 384,588.62 = 157,833 : x
  2. Step 2: Convert to fraction form
    278,670.22/384,588.62 = 157,833/x
  3. Step 3: Cross multiply
    278,670.22x = 384,588.62 × 157,833
  4. Step 4: Simplify right side
    278,670.22x = 60,700,775,660.46
  5. Step 5: Solve for x
    x = 60,700,775,660.46/278,670.22
  6. Step 6: Final answer
    x = 217,822.97

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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.