Home / 278,083.15-383,774.40-157,225.60

Finding the Fourth Proportional to 278,083.15, 383,774.40 and 157,225.60

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Solution

The fourth proportional to 278,083.15, 383,774.40 and 157,225.60 is: 216,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,083.15 : 383,774.40 = 157,225.60 : x
  2. Step 2: Convert to fraction form
    278,083.15/383,774.40 = 157,225.60/x
  3. Step 3: Cross multiply
    278,083.15x = 383,774.40 × 157,225.60
  4. Step 4: Simplify right side
    278,083.15x = 60,339,160,304.64
  5. Step 5: Solve for x
    x = 60,339,160,304.64/278,083.15
  6. Step 6: Final answer
    x = 216,982.44

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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.