Home / 278,582.48-384,422.82-157,696.05

Finding the Fourth Proportional to 278,582.48, 384,422.82 and 157,696.05

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Solution

The fourth proportional to 278,582.48, 384,422.82 and 157,696.05 is: 217,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,582.48 : 384,422.82 = 157,696.05 : x
  2. Step 2: Convert to fraction form
    278,582.48/384,422.82 = 157,696.05/x
  3. Step 3: Cross multiply
    278,582.48x = 384,422.82 × 157,696.05
  4. Step 4: Simplify right side
    278,582.48x = 60,621,960,243.86
  5. Step 5: Solve for x
    x = 60,621,960,243.86/278,582.48
  6. Step 6: Final answer
    x = 217,608.66

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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.