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Finding the Fourth Proportional to 271,420.80, 407,126.40 and 111,462.08

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Solution

The fourth proportional to 271,420.80, 407,126.40 and 111,462.08 is: 167,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,420.80 : 407,126.40 = 111,462.08 : x
  2. Step 2: Convert to fraction form
    271,420.80/407,126.40 = 111,462.08/x
  3. Step 3: Cross multiply
    271,420.80x = 407,126.40 × 111,462.08
  4. Step 4: Simplify right side
    271,420.80x = 45,379,155,366.91
  5. Step 5: Solve for x
    x = 45,379,155,366.91/271,420.80
  6. Step 6: Final answer
    x = 167,191.15

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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.