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Finding the Fourth Proportional to 637,992.81, 956,989.22 and 188,678.70

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Solution

The fourth proportional to 637,992.81, 956,989.22 and 188,678.70 is: 283,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,992.81 : 956,989.22 = 188,678.70 : x
  2. Step 2: Convert to fraction form
    637,992.81/956,989.22 = 188,678.70/x
  3. Step 3: Cross multiply
    637,992.81x = 956,989.22 × 188,678.70
  4. Step 4: Simplify right side
    637,992.81x = 180,563,481,000.22
  5. Step 5: Solve for x
    x = 180,563,481,000.22/637,992.81
  6. Step 6: Final answer
    x = 283,018.05

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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.