Home / 397,437.25-548,458.10-216,145.28

Finding the Fourth Proportional to 397,437.25, 548,458.10 and 216,145.28

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Solution

The fourth proportional to 397,437.25, 548,458.10 and 216,145.28 is: 298,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,437.25 : 548,458.10 = 216,145.28 : x
  2. Step 2: Convert to fraction form
    397,437.25/548,458.10 = 216,145.28/x
  3. Step 3: Cross multiply
    397,437.25x = 548,458.10 × 216,145.28
  4. Step 4: Simplify right side
    397,437.25x = 118,546,629,592.77
  5. Step 5: Solve for x
    x = 118,546,629,592.77/397,437.25
  6. Step 6: Final answer
    x = 298,277.60

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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.