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Finding the Fourth Proportional to 447,117.90, 670,446.45 and 166,490.70

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Solution

The fourth proportional to 447,117.90, 670,446.45 and 166,490.70 is: 249,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,117.90 : 670,446.45 = 166,490.70 : x
  2. Step 2: Convert to fraction form
    447,117.90/670,446.45 = 166,490.70/x
  3. Step 3: Cross multiply
    447,117.90x = 670,446.45 × 166,490.70
  4. Step 4: Simplify right side
    447,117.90x = 111,623,098,773.02
  5. Step 5: Solve for x
    x = 111,623,098,773.02/447,117.90
  6. Step 6: Final answer
    x = 249,650.26

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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.