Home / 278,635.28-384,717-171,349.52

Finding the Fourth Proportional to 278,635.28, 384,717 and 171,349.52

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Solution

The fourth proportional to 278,635.28, 384,717 and 171,349.52 is: 236,585.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,635.28 : 384,717 = 171,349.52 : x
  2. Step 2: Convert to fraction form
    278,635.28/384,717 = 171,349.52/x
  3. Step 3: Cross multiply
    278,635.28x = 384,717 × 171,349.52
  4. Step 4: Simplify right side
    278,635.28x = 65,921,073,285.84
  5. Step 5: Solve for x
    x = 65,921,073,285.84/278,635.28
  6. Step 6: Final answer
    x = 236,585.52

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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.