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Finding the Fourth Proportional to 397,472.07, 548,483.22 and 216,180.30

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Solution

The fourth proportional to 397,472.07, 548,483.22 and 216,180.30 is: 298,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,472.07 : 548,483.22 = 216,180.30 : x
  2. Step 2: Convert to fraction form
    397,472.07/548,483.22 = 216,180.30/x
  3. Step 3: Cross multiply
    397,472.07x = 548,483.22 × 216,180.30
  4. Step 4: Simplify right side
    397,472.07x = 118,571,267,044.57
  5. Step 5: Solve for x
    x = 118,571,267,044.57/397,472.07
  6. Step 6: Final answer
    x = 298,313.46

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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.