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Finding the Fourth Proportional to 249,118.70, 343,773.90 and 147,177

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Solution

The fourth proportional to 249,118.70, 343,773.90 and 147,177 is: 203,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,118.70 : 343,773.90 = 147,177 : x
  2. Step 2: Convert to fraction form
    249,118.70/343,773.90 = 147,177/x
  3. Step 3: Cross multiply
    249,118.70x = 343,773.90 × 147,177
  4. Step 4: Simplify right side
    249,118.70x = 50,595,611,280.30
  5. Step 5: Solve for x
    x = 50,595,611,280.30/249,118.70
  6. Step 6: Final answer
    x = 203,098.41

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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.