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Finding the Fourth Proportional to 344,878.27, 517,311.43 and 155,204.42

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Solution

The fourth proportional to 344,878.27, 517,311.43 and 155,204.42 is: 232,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,878.27 : 517,311.43 = 155,204.42 : x
  2. Step 2: Convert to fraction form
    344,878.27/517,311.43 = 155,204.42/x
  3. Step 3: Cross multiply
    344,878.27x = 517,311.43 × 155,204.42
  4. Step 4: Simplify right side
    344,878.27x = 80,289,017,477.95
  5. Step 5: Solve for x
    x = 80,289,017,477.95/344,878.27
  6. Step 6: Final answer
    x = 232,803.93

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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.