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Finding the Fourth Proportional to 271,241.80, 405,710.70 and 243,363.40

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Solution

The fourth proportional to 271,241.80, 405,710.70 and 243,363.40 is: 364,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,241.80 : 405,710.70 = 243,363.40 : x
  2. Step 2: Convert to fraction form
    271,241.80/405,710.70 = 243,363.40/x
  3. Step 3: Cross multiply
    271,241.80x = 405,710.70 × 243,363.40
  4. Step 4: Simplify right side
    271,241.80x = 98,735,135,368.38
  5. Step 5: Solve for x
    x = 98,735,135,368.38/271,241.80
  6. Step 6: Final answer
    x = 364,011.50

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1.5x scale

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.