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Finding the Fourth Proportional to 271,675.60, 407,513.40 and 215,688.40

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Solution

The fourth proportional to 271,675.60, 407,513.40 and 215,688.40 is: 323,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,675.60 : 407,513.40 = 215,688.40 : x
  2. Step 2: Convert to fraction form
    271,675.60/407,513.40 = 215,688.40/x
  3. Step 3: Cross multiply
    271,675.60x = 407,513.40 × 215,688.40
  4. Step 4: Simplify right side
    271,675.60x = 87,895,913,224.56
  5. Step 5: Solve for x
    x = 87,895,913,224.56/271,675.60
  6. Step 6: Final answer
    x = 323,532.60

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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.