Home / 288,502.11-398,187.92-190,212.77

Finding the Fourth Proportional to 288,502.11, 398,187.92 and 190,212.77

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Solution

The fourth proportional to 288,502.11, 398,187.92 and 190,212.77 is: 262,529.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,502.11 : 398,187.92 = 190,212.77 : x
  2. Step 2: Convert to fraction form
    288,502.11/398,187.92 = 190,212.77/x
  3. Step 3: Cross multiply
    288,502.11x = 398,187.92 × 190,212.77
  4. Step 4: Simplify right side
    288,502.11x = 75,740,427,243.74
  5. Step 5: Solve for x
    x = 75,740,427,243.74/288,502.11
  6. Step 6: Final answer
    x = 262,529.89

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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.