Home / 278,043.93-383,717.18-157,196.49

Finding the Fourth Proportional to 278,043.93, 383,717.18 and 157,196.49

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Solution

The fourth proportional to 278,043.93, 383,717.18 and 157,196.49 is: 216,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,043.93 : 383,717.18 = 157,196.49 : x
  2. Step 2: Convert to fraction form
    278,043.93/383,717.18 = 157,196.49/x
  3. Step 3: Cross multiply
    278,043.93x = 383,717.18 × 157,196.49
  4. Step 4: Simplify right side
    278,043.93x = 60,318,993,848.70
  5. Step 5: Solve for x
    x = 60,318,993,848.70/278,043.93
  6. Step 6: Final answer
    x = 216,940.52

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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.