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Finding the Fourth Proportional to 230,744.70, 346,084.65 and 72,989.10

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Solution

The fourth proportional to 230,744.70, 346,084.65 and 72,989.10 is: 109,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,744.70 : 346,084.65 = 72,989.10 : x
  2. Step 2: Convert to fraction form
    230,744.70/346,084.65 = 72,989.10/x
  3. Step 3: Cross multiply
    230,744.70x = 346,084.65 × 72,989.10
  4. Step 4: Simplify right side
    230,744.70x = 25,260,407,127.32
  5. Step 5: Solve for x
    x = 25,260,407,127.32/230,744.70
  6. Step 6: Final answer
    x = 109,473.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.