Home / 278,006.25-383,654.52-157,140.33

Finding the Fourth Proportional to 278,006.25, 383,654.52 and 157,140.33

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Solution

The fourth proportional to 278,006.25, 383,654.52 and 157,140.33 is: 216,856.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,006.25 : 383,654.52 = 157,140.33 : x
  2. Step 2: Convert to fraction form
    278,006.25/383,654.52 = 157,140.33/x
  3. Step 3: Cross multiply
    278,006.25x = 383,654.52 × 157,140.33
  4. Step 4: Simplify right side
    278,006.25x = 60,287,597,878.79
  5. Step 5: Solve for x
    x = 60,287,597,878.79/278,006.25
  6. Step 6: Final answer
    x = 216,856.99

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1.5x scale

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.