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Finding the Fourth Proportional to 307,460.45, 424,277.15 and 178,388.92

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Solution

The fourth proportional to 307,460.45, 424,277.15 and 178,388.92 is: 246,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,460.45 : 424,277.15 = 178,388.92 : x
  2. Step 2: Convert to fraction form
    307,460.45/424,277.15 = 178,388.92/x
  3. Step 3: Cross multiply
    307,460.45x = 424,277.15 × 178,388.92
  4. Step 4: Simplify right side
    307,460.45x = 75,686,342,737.93
  5. Step 5: Solve for x
    x = 75,686,342,737.93/307,460.45
  6. Step 6: Final answer
    x = 246,166.11

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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.