Home / 278,193.02-383,901.83-157,329.78

Finding the Fourth Proportional to 278,193.02, 383,901.83 and 157,329.78

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Solution

The fourth proportional to 278,193.02, 383,901.83 and 157,329.78 is: 217,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,193.02 : 383,901.83 = 157,329.78 : x
  2. Step 2: Convert to fraction form
    278,193.02/383,901.83 = 157,329.78/x
  3. Step 3: Cross multiply
    278,193.02x = 383,901.83 × 157,329.78
  4. Step 4: Simplify right side
    278,193.02x = 60,399,190,455.50
  5. Step 5: Solve for x
    x = 60,399,190,455.50/278,193.02
  6. Step 6: Final answer
    x = 217,112.53

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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.