Home / 278,255.76-383,811.36-176,174.82

Finding the Fourth Proportional to 278,255.76, 383,811.36 and 176,174.82

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Solution

The fourth proportional to 278,255.76, 383,811.36 and 176,174.82 is: 243,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,255.76 : 383,811.36 = 176,174.82 : x
  2. Step 2: Convert to fraction form
    278,255.76/383,811.36 = 176,174.82/x
  3. Step 3: Cross multiply
    278,255.76x = 383,811.36 × 176,174.82
  4. Step 4: Simplify right side
    278,255.76x = 67,617,897,261.96
  5. Step 5: Solve for x
    x = 67,617,897,261.96/278,255.76
  6. Step 6: Final answer
    x = 243,006.28

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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.