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Finding the Fourth Proportional to 452,176.37, 678,383.12 and 136,641.65

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Solution

The fourth proportional to 452,176.37, 678,383.12 and 136,641.65 is: 204,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,176.37 : 678,383.12 = 136,641.65 : x
  2. Step 2: Convert to fraction form
    452,176.37/678,383.12 = 136,641.65/x
  3. Step 3: Cross multiply
    452,176.37x = 678,383.12 × 136,641.65
  4. Step 4: Simplify right side
    452,176.37x = 92,695,388,848.95
  5. Step 5: Solve for x
    x = 92,695,388,848.95/452,176.37
  6. Step 6: Final answer
    x = 204,998.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.