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Finding the Fourth Proportional to 397,460.73, 548,502.74 and 216,173.88

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Solution

The fourth proportional to 397,460.73, 548,502.74 and 216,173.88 is: 298,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,460.73 : 548,502.74 = 216,173.88 : x
  2. Step 2: Convert to fraction form
    397,460.73/548,502.74 = 216,173.88/x
  3. Step 3: Cross multiply
    397,460.73x = 548,502.74 × 216,173.88
  4. Step 4: Simplify right side
    397,460.73x = 118,571,966,442.19
  5. Step 5: Solve for x
    x = 118,571,966,442.19/397,460.73
  6. Step 6: Final answer
    x = 298,323.73

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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.