Home / 278,285.04-383,910.96-187,607.88

Finding the Fourth Proportional to 278,285.04, 383,910.96 and 187,607.88

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Solution

The fourth proportional to 278,285.04, 383,910.96 and 187,607.88 is: 258,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,285.04 : 383,910.96 = 187,607.88 : x
  2. Step 2: Convert to fraction form
    278,285.04/383,910.96 = 187,607.88/x
  3. Step 3: Cross multiply
    278,285.04x = 383,910.96 × 187,607.88
  4. Step 4: Simplify right side
    278,285.04x = 72,024,721,314.36
  5. Step 5: Solve for x
    x = 72,024,721,314.36/278,285.04
  6. Step 6: Final answer
    x = 258,816.36

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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.