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Finding the Fourth Proportional to 234,579, 323,719.02 and 128,595

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Solution

The fourth proportional to 234,579, 323,719.02 and 128,595 is: 177,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,579 : 323,719.02 = 128,595 : x
  2. Step 2: Convert to fraction form
    234,579/323,719.02 = 128,595/x
  3. Step 3: Cross multiply
    234,579x = 323,719.02 × 128,595
  4. Step 4: Simplify right side
    234,579x = 41,628,647,376.90
  5. Step 5: Solve for x
    x = 41,628,647,376.90/234,579
  6. Step 6: Final answer
    x = 177,461.10

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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.