Home / 278,390.12-384,185.30-151,065.41

Finding the Fourth Proportional to 278,390.12, 384,185.30 and 151,065.41

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Solution

The fourth proportional to 278,390.12, 384,185.30 and 151,065.41 is: 208,474.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,390.12 : 384,185.30 = 151,065.41 : x
  2. Step 2: Convert to fraction form
    278,390.12/384,185.30 = 151,065.41/x
  3. Step 3: Cross multiply
    278,390.12x = 384,185.30 × 151,065.41
  4. Step 4: Simplify right side
    278,390.12x = 58,037,107,184.22
  5. Step 5: Solve for x
    x = 58,037,107,184.22/278,390.12
  6. Step 6: Final answer
    x = 208,474.02

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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.