Home / 381,308.11-526,187.64-209,222.29

Finding the Fourth Proportional to 381,308.11, 526,187.64 and 209,222.29

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Solution

The fourth proportional to 381,308.11, 526,187.64 and 209,222.29 is: 288,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,308.11 : 526,187.64 = 209,222.29 : x
  2. Step 2: Convert to fraction form
    381,308.11/526,187.64 = 209,222.29/x
  3. Step 3: Cross multiply
    381,308.11x = 526,187.64 × 209,222.29
  4. Step 4: Simplify right side
    381,308.11x = 110,090,184,452.81
  5. Step 5: Solve for x
    x = 110,090,184,452.81/381,308.11
  6. Step 6: Final answer
    x = 288,717.14

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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.