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Finding the Fourth Proportional to 376,831.28, 520,020.87 and 204,751.88

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Solution

The fourth proportional to 376,831.28, 520,020.87 and 204,751.88 is: 282,554.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,831.28 : 520,020.87 = 204,751.88 : x
  2. Step 2: Convert to fraction form
    376,831.28/520,020.87 = 204,751.88/x
  3. Step 3: Cross multiply
    376,831.28x = 520,020.87 × 204,751.88
  4. Step 4: Simplify right side
    376,831.28x = 106,475,249,353.89
  5. Step 5: Solve for x
    x = 106,475,249,353.89/376,831.28
  6. Step 6: Final answer
    x = 282,554.17

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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.