Home / 400,449.45-552,612.81-219,157.72

Finding the Fourth Proportional to 400,449.45, 552,612.81 and 219,157.72

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Solution

The fourth proportional to 400,449.45, 552,612.81 and 219,157.72 is: 302,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,449.45 : 552,612.81 = 219,157.72 : x
  2. Step 2: Convert to fraction form
    400,449.45/552,612.81 = 219,157.72/x
  3. Step 3: Cross multiply
    400,449.45x = 552,612.81 × 219,157.72
  4. Step 4: Simplify right side
    400,449.45x = 121,109,362,922.70
  5. Step 5: Solve for x
    x = 121,109,362,922.70/400,449.45
  6. Step 6: Final answer
    x = 302,433.58

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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.