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Finding the Fourth Proportional to 397,636.70, 548,722.22 and 216,349.35

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Solution

The fourth proportional to 397,636.70, 548,722.22 and 216,349.35 is: 298,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,636.70 : 548,722.22 = 216,349.35 : x
  2. Step 2: Convert to fraction form
    397,636.70/548,722.22 = 216,349.35/x
  3. Step 3: Cross multiply
    397,636.70x = 548,722.22 × 216,349.35
  4. Step 4: Simplify right side
    397,636.70x = 118,715,692,488.10
  5. Step 5: Solve for x
    x = 118,715,692,488.10/397,636.70
  6. Step 6: Final answer
    x = 298,553.16

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1.5x scale

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.