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Finding the Fourth Proportional to 271,228.40, 406,988.40 and 113,472.80

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Solution

The fourth proportional to 271,228.40, 406,988.40 and 113,472.80 is: 170,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,228.40 : 406,988.40 = 113,472.80 : x
  2. Step 2: Convert to fraction form
    271,228.40/406,988.40 = 113,472.80/x
  3. Step 3: Cross multiply
    271,228.40x = 406,988.40 × 113,472.80
  4. Step 4: Simplify right side
    271,228.40x = 46,182,113,315.52
  5. Step 5: Solve for x
    x = 46,182,113,315.52/271,228.40
  6. Step 6: Final answer
    x = 170,270.20

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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.