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Finding the Fourth Proportional to 351,008.28, 484,390.87 and 189,862.83

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Solution

The fourth proportional to 351,008.28, 484,390.87 and 189,862.83 is: 262,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,008.28 : 484,390.87 = 189,862.83 : x
  2. Step 2: Convert to fraction form
    351,008.28/484,390.87 = 189,862.83/x
  3. Step 3: Cross multiply
    351,008.28x = 484,390.87 × 189,862.83
  4. Step 4: Simplify right side
    351,008.28x = 91,967,820,929.71
  5. Step 5: Solve for x
    x = 91,967,820,929.71/351,008.28
  6. Step 6: Final answer
    x = 262,010.40

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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.