Home / 200,320.96-300,216.84-87,831.76

Finding the Fourth Proportional to 200,320.96, 300,216.84 and 87,831.76

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Solution

The fourth proportional to 200,320.96, 300,216.84 and 87,831.76 is: 131,631.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,320.96 : 300,216.84 = 87,831.76 : x
  2. Step 2: Convert to fraction form
    200,320.96/300,216.84 = 87,831.76/x
  3. Step 3: Cross multiply
    200,320.96x = 300,216.84 × 87,831.76
  4. Step 4: Simplify right side
    200,320.96x = 26,368,573,438.84
  5. Step 5: Solve for x
    x = 26,368,573,438.84/200,320.96
  6. Step 6: Final answer
    x = 131,631.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.