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Finding the Fourth Proportional to 271,421.40, 407,132.10 and 227,875.80

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Solution

The fourth proportional to 271,421.40, 407,132.10 and 227,875.80 is: 341,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,421.40 : 407,132.10 = 227,875.80 : x
  2. Step 2: Convert to fraction form
    271,421.40/407,132.10 = 227,875.80/x
  3. Step 3: Cross multiply
    271,421.40x = 407,132.10 × 227,875.80
  4. Step 4: Simplify right side
    271,421.40x = 92,775,552,993.18
  5. Step 5: Solve for x
    x = 92,775,552,993.18/271,421.40
  6. Step 6: Final answer
    x = 341,813.70

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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.