Home / 256,841.28-385,338.24-123,683.04

Finding the Fourth Proportional to 256,841.28, 385,338.24 and 123,683.04

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Solution

The fourth proportional to 256,841.28, 385,338.24 and 123,683.04 is: 185,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,841.28 : 385,338.24 = 123,683.04 : x
  2. Step 2: Convert to fraction form
    256,841.28/385,338.24 = 123,683.04/x
  3. Step 3: Cross multiply
    256,841.28x = 385,338.24 × 123,683.04
  4. Step 4: Simplify right side
    256,841.28x = 47,659,804,951.45
  5. Step 5: Solve for x
    x = 47,659,804,951.45/256,841.28
  6. Step 6: Final answer
    x = 185,561.31

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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.