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Finding the Fourth Proportional to 251,903.73, 347,621.94 and 137,184.38

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Solution

The fourth proportional to 251,903.73, 347,621.94 and 137,184.38 is: 189,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,903.73 : 347,621.94 = 137,184.38 : x
  2. Step 2: Convert to fraction form
    251,903.73/347,621.94 = 137,184.38/x
  3. Step 3: Cross multiply
    251,903.73x = 347,621.94 × 137,184.38
  4. Step 4: Simplify right side
    251,903.73x = 47,688,299,878.77
  5. Step 5: Solve for x
    x = 47,688,299,878.77/251,903.73
  6. Step 6: Final answer
    x = 189,311.60

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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.