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Finding the Fourth Proportional to 637,166.05, 955,299.83 and 257,974.88

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Solution

The fourth proportional to 637,166.05, 955,299.83 and 257,974.88 is: 386,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,166.05 : 955,299.83 = 257,974.88 : x
  2. Step 2: Convert to fraction form
    637,166.05/955,299.83 = 257,974.88/x
  3. Step 3: Cross multiply
    637,166.05x = 955,299.83 × 257,974.88
  4. Step 4: Simplify right side
    637,166.05x = 246,443,352,941.90
  5. Step 5: Solve for x
    x = 246,443,352,941.90/637,166.05
  6. Step 6: Final answer
    x = 386,780.42

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1.5x scale

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.