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Finding the Fourth Proportional to 262,419.71, 391,582.06 and 234,145.31

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Solution

The fourth proportional to 262,419.71, 391,582.06 and 234,145.31 is: 349,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,419.71 : 391,582.06 = 234,145.31 : x
  2. Step 2: Convert to fraction form
    262,419.71/391,582.06 = 234,145.31/x
  3. Step 3: Cross multiply
    262,419.71x = 391,582.06 × 234,145.31
  4. Step 4: Simplify right side
    262,419.71x = 91,687,100,285.87
  5. Step 5: Solve for x
    x = 91,687,100,285.87/262,419.71
  6. Step 6: Final answer
    x = 349,391.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.