Home / 256,535.28-384,885.96-123,398.22

Finding the Fourth Proportional to 256,535.28, 384,885.96 and 123,398.22

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Solution

The fourth proportional to 256,535.28, 384,885.96 and 123,398.22 is: 185,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,535.28 : 384,885.96 = 123,398.22 : x
  2. Step 2: Convert to fraction form
    256,535.28/384,885.96 = 123,398.22/x
  3. Step 3: Cross multiply
    256,535.28x = 384,885.96 × 123,398.22
  4. Step 4: Simplify right side
    256,535.28x = 47,494,242,366.99
  5. Step 5: Solve for x
    x = 47,494,242,366.99/256,535.28
  6. Step 6: Final answer
    x = 185,137.27

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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.