Home / 256,312.20-384,857.10-197,214.60

Finding the Fourth Proportional to 256,312.20, 384,857.10 and 197,214.60

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Solution

The fourth proportional to 256,312.20, 384,857.10 and 197,214.60 is: 296,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,312.20 : 384,857.10 = 197,214.60 : x
  2. Step 2: Convert to fraction form
    256,312.20/384,857.10 = 197,214.60/x
  3. Step 3: Cross multiply
    256,312.20x = 384,857.10 × 197,214.60
  4. Step 4: Simplify right side
    256,312.20x = 75,899,439,033.66
  5. Step 5: Solve for x
    x = 75,899,439,033.66/256,312.20
  6. Step 6: Final answer
    x = 296,121.05

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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.