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Finding the Fourth Proportional to 271,603.12, 408,068.88 and 256,496.32

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Solution

The fourth proportional to 271,603.12, 408,068.88 and 256,496.32 is: 385,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,603.12 : 408,068.88 = 256,496.32 : x
  2. Step 2: Convert to fraction form
    271,603.12/408,068.88 = 256,496.32/x
  3. Step 3: Cross multiply
    271,603.12x = 408,068.88 × 256,496.32
  4. Step 4: Simplify right side
    271,603.12x = 104,668,166,026.52
  5. Step 5: Solve for x
    x = 104,668,166,026.52/271,603.12
  6. Step 6: Final answer
    x = 385,371.74

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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.