Home / 397,330.05-548,322.32-216,043.21

Finding the Fourth Proportional to 397,330.05, 548,322.32 and 216,043.21

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Solution

The fourth proportional to 397,330.05, 548,322.32 and 216,043.21 is: 298,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,330.05 : 548,322.32 = 216,043.21 : x
  2. Step 2: Convert to fraction form
    397,330.05/548,322.32 = 216,043.21/x
  3. Step 3: Cross multiply
    397,330.05x = 548,322.32 × 216,043.21
  4. Step 4: Simplify right side
    397,330.05x = 118,461,310,305.62
  5. Step 5: Solve for x
    x = 118,461,310,305.62/397,330.05
  6. Step 6: Final answer
    x = 298,143.35

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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.