Home / 397,360.08-548,344.92-216,072.40

Finding the Fourth Proportional to 397,360.08, 548,344.92 and 216,072.40

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Solution

The fourth proportional to 397,360.08, 548,344.92 and 216,072.40 is: 298,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,360.08 : 548,344.92 = 216,072.40 : x
  2. Step 2: Convert to fraction form
    397,360.08/548,344.92 = 216,072.40/x
  3. Step 3: Cross multiply
    397,360.08x = 548,344.92 × 216,072.40
  4. Step 4: Simplify right side
    397,360.08x = 118,482,202,892.21
  5. Step 5: Solve for x
    x = 118,482,202,892.21/397,360.08
  6. Step 6: Final answer
    x = 298,173.39

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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.