Home / 400,872.06-553,203-219,595.14

Finding the Fourth Proportional to 400,872.06, 553,203 and 219,595.14

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Solution

The fourth proportional to 400,872.06, 553,203 and 219,595.14 is: 303,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,872.06 : 553,203 = 219,595.14 : x
  2. Step 2: Convert to fraction form
    400,872.06/553,203 = 219,595.14/x
  3. Step 3: Cross multiply
    400,872.06x = 553,203 × 219,595.14
  4. Step 4: Simplify right side
    400,872.06x = 121,480,690,233.42
  5. Step 5: Solve for x
    x = 121,480,690,233.42/400,872.06
  6. Step 6: Final answer
    x = 303,041.05

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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.