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Finding the Fourth Proportional to 351,088.78, 484,502.29 and 189,943.87

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Solution

The fourth proportional to 351,088.78, 484,502.29 and 189,943.87 is: 262,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,088.78 : 484,502.29 = 189,943.87 : x
  2. Step 2: Convert to fraction form
    351,088.78/484,502.29 = 189,943.87/x
  3. Step 3: Cross multiply
    351,088.78x = 484,502.29 × 189,943.87
  4. Step 4: Simplify right side
    351,088.78x = 92,028,239,986.46
  5. Step 5: Solve for x
    x = 92,028,239,986.46/351,088.78
  6. Step 6: Final answer
    x = 262,122.42

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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.