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Finding the Fourth Proportional to 271,246.80, 406,870.20 and 256,040.40

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Solution

The fourth proportional to 271,246.80, 406,870.20 and 256,040.40 is: 384,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,246.80 : 406,870.20 = 256,040.40 : x
  2. Step 2: Convert to fraction form
    271,246.80/406,870.20 = 256,040.40/x
  3. Step 3: Cross multiply
    271,246.80x = 406,870.20 × 256,040.40
  4. Step 4: Simplify right side
    271,246.80x = 104,175,208,756.08
  5. Step 5: Solve for x
    x = 104,175,208,756.08/271,246.80
  6. Step 6: Final answer
    x = 384,060.60

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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.